I'm a sysadmin and I have the site [url removed, login to view] that loads in 6 secs. I wish to low this time to 2 secs or less. You can check it at [url removed, login to view]
The site is based on Joomla/Jomsocial/Kunena It's running in a single dedicated server with 16gbram. Ubuntu/Nginx/PHP-fpm/Apc/Varnish
You need to fix the slow queries and do whatever you think improve the current load time.
I WILL NOT PAY YOU IF YOU DONT GET THE JOB DONE, WHICH IS TO LOW THE LOAD TIME TO BE BELOW the 2 secs.