JCH Optimize or Mod_Pagespeed (ngx_pagespeed )? Which one do you think works best in improving page loadspeed, minify css, js, html, reduce http request, etc.. One is server side optimization and the other is Joomla side optimization. Which one works best? Mod_pagespeed might be CPU intensive but does it do a better job than jch optimize? Your views...
Set-up: LEMP Stack + Opcode cache + Joomla 3.3 + EasySocial + System cache