Fix Angular 20 + ASP.NET Web API 2 ERP Performance Issues (Post-Upgrade Slowdown) -- 3

@a4logic

Hello, As an extensively experienced full-stack developer, I would be a great fit to troubleshoot and optimize your post-upgrade ERP system. My solid grasp of Angular (versions 17+), combined with my substantial knowledge of ASP.NET Web API, uniquely qualifies me to anticipate and resolve issues that may have occurred during the Angular upgrade. With my broad range of expertise across various technologies including C# Programming and JavaScript, I offer the flexibility needed for effective debugging and performance enhancement in complex enterprise applications. Moreover, my familiarity with database query optimization will assist me in tackling any inefficiencies slowing down API responses and system performance, ensuring optimal resource utilization. Additionally, my experience in PDF generation via PuppeteerSharp & Razor Engine will significantly contribute to streamlining the latency associated with initial and subsequent requests. I understand the importance of delivering measurable improvements on a flexible budget. Therefore, I propose a holistic approach that includes not only diagnosing and resolving existing issues but also implementing long-term strategies for improved app interoperability at scale. With me on board, you can expect thorough documentation detailing all changes made for better transparency as well as clear benchmarks highlighting real progress. Let's work together to increase the efficiency of your system Thanks!

@seefattechnologi

Hi, I will diagnose the actual bottleneck behind the Angular 20 upgrade regression across frontend rendering, API latency and SQL rather than applying generic optimizations. I will profile Angular change detection/signals, optimize 100k+ LOV dropdowns, tune Web API/SQL queries, improve PuppeteerSharp PDF generation, and fix the slow image-heavy landing page. You will receive before/after benchmarks, root-cause findings and documented fixes. Please ping me to get started and get outstanding results. Thanks!!!

@shivmirthyusl

Hi, With close to two decades of industry experience, we at IT Flex Solutions India have encountered and successfully resolved a wide range of web development issues, making us the perfect choice to tackle your post-upgrade ERP performance slowdown. Our expertise in Angular (including Angular 20 signals and zoneless change detection) aligns perfectly with your needs, allowing us to thoroughly inspect your frontend rendering, change detection, and bundle size problems. Additionally, our strong experience in ASP.NET Web API development combined with proficient database query optimization on SQL Server is an ideal skill set for diagnosing and resolving API latency problems and database query inefficiencies. Extra effort has been extended towards optimizing reusable address dropdowns for large datasets in similar environments; One of the main reasons you should pick us for your project is because at IT Flex Solutions India we don't just fix problems, we optimize and improve entire systems. From streamlining PDF generation via PuppeteerSharp & Razor Engine to boost efficiencies (for reduced latency on initial and subsequent requests), to enhancing loading times and responsiveness across all modules with measurable improvements to offer you a before-and-after benchmark comparison; our stringent analysis and meticulous documentation will ensure root cause analysis is provided along with detailed strategies on improvement. Thanks, SBM

@ZohaibRoy

⭐⭐⭐⭐⭐ Optimize ERP System Performance with Angular & ASP.NET Expertise ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for help with your ERP system's performance issues after the upgrade. You don't need to look any further; Zohaib is here to assist you! My team has completed 50+ similar projects focused on Angular and ASP.NET optimization. I will diagnose the problems thoroughly and implement effective solutions to enhance your system's performance. ➡️ Why Me? I can easily resolve your ERP system's performance issues, as I have over 5 years of experience in Angular and ASP.NET development. My skills include diagnosing frontend rendering issues, optimizing API responses, and fine-tuning database queries. Additionally, I have a strong grip on performance tools, ensuring an effective approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Angular 20+ ✅ ASP.NET Web API ✅ SQL Server Optimization ✅ Performance Tuning ✅ Change Detection ✅ API Latency Solutions ✅ PDF Generation ✅ Data Grid Optimization ✅ Root Cause Analysis ✅ Performance Benchmarking ✅ Code Optimization ✅ ERP System Knowledge Waiting for your response! Best Regards, Zohaib

@rajat07me

I’ve worked on exactly these kinds of post-upgrade slowdowns where the issue is not just one bottleneck, but a mix of Angular rendering overhead, API delays, SQL inefficiencies, and heavy first-load assets. Your ERP scope is clear, and I can review the Angular 20 upgrade path, the large LOV/dropdown handling, PDF generation flow, and the slow main page to identify what is actually causing the regression. I’ll provide a root-cause report, apply the optimizations, and share before/after benchmarks so the improvement is measurable. If you want, I can start with a focused audit and optimization pass right away.

@HiFiDesigner

Post-upgrade performance bottlenecks in enterprise ERPs usually stem from unoptimized change detection cycles on complex grids, unpaginated 100k+ dropdown lookups blocking the main thread, and unpooled Puppeteer browser instances creating backend CPU spikes. When frontend signals/zoneless transitions misalign with legacy API payloads, entire modules suffer severe latency. I will profile, diagnose, and resolve your full-stack performance bottlenecks across Angular and ASP.NET Web API 2. I will implement virtual scrolling with debounced server-side paging for your 100k+ address LOVs, optimize Angular signal/change detection pathways to stop excess re-renders, reuse Chromium browser instances with Razor template caching to slash PDF generation latency, compress homepage media assets, and tune SQL execution plans. You receive before-and-after benchmarks alongside full documentation. Share your repository access or staging environment to run initial MiniProfiler and DevTools audits today.

@denisSolution

Hi, I'm Denis, a full-stack developer who has worked on enterprise systems with Angular and .NET backends, including performance tuning after major upgrades. Your ERP’s slowdown after upgrading Angular and .NET is likely tied to unoptimized change detection in Angular 20, inefficient API calls, and bloated bundles. The address dropdowns with 100k+ records are probably loading all data at once, and PDF generation via PuppeteerSharp could be adding latency due to rendering overhead. I’d start by profiling the frontend with Lighthouse and Angular DevTools to identify change detection bottlenecks, then audit API endpoints with MiniProfiler to spot slow queries or missing indexes. For the dropdowns, implementing virtual scrolling or lazy-loading would cut load times dramatically. PDF generation could be improved by caching rendered templates or offloading heavy tasks to a queue. The biggest risks are unclear data consistency in the ERP’s state management and potential API rate limits from SQL Server. I’d handle these with transaction boundaries and query batching. I can start working right away. Let's connect and discuss the details. Thanks, Denis.

@bcosley

Hi, Post-upgrade slowdown in the ERP after Angular 20 and ASP.NET Web API 2 upgrade is a real pain for users across the modules. I’ve diagnosed and optimized performance in large enterprise apps with 100k+ datasets, focusing on rendering, API latency, and grid responsiveness. I’d start with a profiling pass to validate current change-detection, bundle sizes, and API paths, then isolate hot paths and apply targeted fixes for LOVs, PDFs, and image streaming. One technical risk / key challenge: Heavy initial data loads and large grid refresh cycles can cause cascading delays if not staged with paging and caching. What should happen if records disappear and reappear later? What deployment constraints should govern PuppeteerSharp PDFs (headless mode, resource limits, and scheduling)? If we're aligned, I’d be happy to walk you through the implementation plan before we get started. Best regards, Brandon

@ozbas

With over a decade of experience as a Full-Stack software engineer, I have amassed the skills and expertise necessary to tackle the performance issues plaguing your upgraded ERP system. My proficiency in Angular 17+ is complemented by a deep comprehension of ASP.NET Web API 2, making me uniquely qualified for this job. I've encountered and effectively resolved similar issues around frontend rendering, change detection, bundle size optimization, API latency problems, and database query inefficiencies - precisely the challenges your project poses. Moreover, my familiarity with PuppeteerSharp & Razor Engine will undoubtedly prove extremely beneficial in streamlining the PDF generation process for reduced latency in requests. I'm well versed with performance tools like Lighthouse, MiniProfiler, and dotTrace and can utilize them to their maximum potential when finding bottlenecks in the system. Building large-scale enterprise applications and ERP systems has been a consistent part of my portfolio. My previous work has demanded seamless app interoperability at scale - a necessity that I piously uphold. Budget-flexibility aside, your choice in me guarantees delivery of measurable improvements, before-and-after benchmarks, thorough documentation of implementation changes as well as free technical support even after the project ends. Let’s connect further to discuss your unique needsolutions to boost your ERP system's performance.

@ost

With extensive experience gained from working on diverse web development projects, I am the AngularJS and ASP.NET expert you need to fix your ERP system's performance issues. My proficiency in Angular versions as advanced as Angular 20, combined with a deep understanding of performance optimization techniques, make me an ideal candidate for the job. Having had my hands on similar large-scale applications and ERP systems before, I can navigate the complexities proficiently to identify and rectify any misconfiguration issues arising from the upgrade. Optimizing address dropdowns for large datasets, managing database inefficiencies, and minimizing latency during PDF generation are areas where my expertise really shines. Moreover, my familiarity with strong diagnostic tools such as Lighthouse, MiniProfiler and dotTrace not only leave no stone unturned in terms of bug indentification but also ensure that each aspect of the front-end rendering cycle (especially change detection) has been optimally calibrated. To further reiterate my suitability, my problem solving abilities extend to tasks such as speeding up page loading times, handling API latency and scrutinizing SQL queries; all skills essential for your project. My budget-friendly yet results driven approach will not only enhance your app's interoperability at scale but also leave room for future improvements. I look forward to applying this same level of expertise and skill to your project.

@juanestebana17

Hello! @Project@ I understand your need to resolve performance issues after upgrading to Angular 20.3.19 and ASP.NET Web API 2, specifically targeting API response times, frontend rendering, and database query optimization. @Why I'm a good fit@ I have extensive expertise in Angular (including Angular 17+), ASP.NET Web API, and SQL Server optimization, having spent the last several years solving exactly these kinds of performance challenges in large-scale enterprise applications and ERP systems. I am well-versed in utilizing tools like Lighthouse, MiniProfiler, and dotTrace to diagnose and enhance system responsiveness. I'm ready to start working immediately. Thanks!

@shayankhan333

Hello, I can diagnose and fix the post-upgrade slowdown in your Angular 20 and ASP.NET Web API 2 ERP, covering change detection, bundle size, LOV dropdowns on 100k+ records, and PuppeteerSharp PDF latency. I can start today. I will profile with Lighthouse and MiniProfiler, then apply signals, virtual scrolling, and SQL query tuning where each metric proves it helps. Questions: 1) Can you share repo access and a slow-page list? 2) Is zoneless change detection already enabled? Looking forward to discussing further. Regards, Shayan.

@ssquare489

The biggest risk here is treating the Angular 20.3.19 upgrade as a frontend-only problem when the slowdown may be split across rendering, API calls, SQL queries, and PDF cold-start overhead. I’d profile the full request path first, then fix the highest-impact bottlenecks with measurable before/after benchmarks. My two priorities would be clean implementation and maintainability. On Angular, I’d review change detection, signals/zoneless configuration, lazy loading, bundle size, grid rendering, trackBy usage, unnecessary subscriptions, and repeated API calls. For the 100k+ address LOVs, I’d move to server-side search/pagination, debouncing, caching, and virtualized rendering rather than loading large datasets into the browser. On Web API 2/SQL Server, I’d use MiniProfiler/dotTrace plus execution plans to find slow endpoints, N+1 access patterns, missing indexes, inefficient joins, and over-fetching. For PuppeteerSharp/Razor PDF generation, I’d reduce cold starts using browser pooling, template precompilation, asset caching, and controlled concurrency. A relevant example is Restaurant POS Rescue, where I worked on a legacy production system with database-heavy workflows, stability issues, and performance-sensitive operational logic. I’d deliver a root-cause report, prioritized fixes, optimized code, benchmark evidence, and implementation notes.

@billybryan98

Hello there. I hope you are donig well. I am well-equipped to tackle performance issues in your ERP system, having successfully optimized Angular applications and ASP.NET Web APIs in previous projects. My experience with large-scale enterprise applications ensures I understand the complexities involved in maintaining performance after upgrades. I recognize the challenges you're facing with slow page loads and API response times post-upgrade. To address these, I will conduct a thorough diagnosis of frontend rendering and API latency, optimizing change detection and database queries to enhance overall performance effectively. I will deliver high-quality, optimized code with measurable improvements, accompanied by detailed documentation and performance benchmarks. My comprehensive approach ensures that the solutions are sustainable and tailored to meet your specific needs, ultimately enhancing user experience. Please feel free to reach out to me. I look forward to working with you. Best regards, Billy Bryan

@pasion0128

★•══•★ Hi client ★•══•★ I’ve dealt with slowdowns after Angular upgrades and backend tweaks, so I get how frustrating this can be. I’ll dig into your frontend rendering, change detection, and API latency to pinpoint the bottlenecks. For those giant dropdowns with 100k+ records, I’ll optimize loading so users won’t feel like they’re waiting forever. PuppeteerSharp PDF generation? I’ll trim that initial lag too. I’m comfortable with Angular’s latest features like signals and zoneless change detection and will check for any upgrade hiccups. On the backend, I’ll tune your SQL queries and API responses to speed things up without breaking anything. You’ll get a clear root cause report, before/after benchmarks, and clean docs so you know what changed and why. Want to chat about which part is slowing you down most? Best regards, Rico

@mahads31

Leveraging my extensive background in C# Programming and JavaScript, I'm confident in my ability to tackle your Angular 20 + ASP.NET Web API 2 ERP performance issues head-on. With a keen eye for detail and a commitment to solving complex problems efficiently, I'll conduct a thorough diagnosis of your system to unearth any misconfigurations, database query inefficiencies, or rendering issues that might be bogging down your application. One of my strengths lies in delivering optimized code that enhances loading times and responsiveness - something I believe is vital for large-scale enterprise apps such as yours; but let's not just take my word for it. As part of my deliverables, I will provide you a detailed report showcasing the root cause analysis plus clear benchmarks illustrating the significant improvements made. Having worked with various ERP systems and large datasets in the past, I am well-equipped with the skills to optimize the reusable address dropdowns and streamline PDF generation on multiple forms, ensuring maximum performance even when dealing with large amounts of data. Moreover, familiarity with performance tools like Lighthouse, MiniProfiler, and dotTrace further enhance my ability to precisely identify pain points and effectively resolve them. Trust me with transforming your idea into an efficient, reliable product capable of driving long-term business growth.

@AndrewJSMAN

I’ve optimized Angular 20 + ASP.NET Web API 2 ERP stacks before—standalone components, zoneless change detection, and signal migrations included—so this is right in my wheelhouse. I’ll start with MiniProfiler and dotTrace traces to isolate bottlenecks, then repro the 100k+ LOV dropdown latency and PDF generation delays with PuppeteerSharp profiling. Angular bundle will be audited via esbuild, signals migrated where possible, and change detection strategies tightened; backend will get SQL Server query plan reviews and clustered index tuning for the grids. The landed page slowdown with image uploads suggests unoptimized asset handling—I’ll implement lazy loading and CDN caching. Root cause report with benchmark snapshots comes first, then targeted fixes with before/after measurements. I can start immediately. Thanks, Andrii.

@arslanshahid386

Hi, I see you're experiencing performance issues after upgrading to Angular 20.3.19 and ASP.NET Web API 2. Can you specify which data grids are most affected by the slowdown?

@gowthamsarathy

Hello, The slowdown after the Angular 20.3.19 upgrade needs to be profiled across the full request path rather than treated as a frontend-only regression. The likely hotspots are unnecessary Angular change detection/render cycles, oversized bundles and signals/zoneless configuration, repeated 100k+ LOV queries, SQL execution plans, API serialization/latency, and PuppeteerSharp/Razor PDF startup costs. The image-heavy landing page also needs separate network and rendering profiling. Here’s my approach to the project: establish before/after baselines with Lighthouse and browser profiling, trace API requests with MiniProfiler/dotTrace, then isolate Angular rendering and bundle regressions before changing architecture. Large LOVs will move toward server-side search/pagination with caching where appropriate, while SQL queries and indexes are profiled against actual execution plans. API serialization, connection usage, PDF browser/page lifecycle, Razor rendering, image sizing/compression, lazy loading, and caching will then be optimized based on measured bottlenecks rather than assumptions. The final delivery will include the root-cause report, optimized code, before/after benchmarks, implementation documentation, and regression testing across the affected ERP modules. Performance improvements will be measured at frontend, API, database, PDF, and landing-page levels before handover. Kind regards, Gowtham