Goodmorning, i have this configuration
nginx + php5 + mysql + memcache +fastCGI
and i have this plug-in
W3 Total Cache + Nginx Helper
After change the url from subdirectory to root
Using a pre-existing subdirectory install http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory
Time to First Byte increased from 0.2 seconds to 2.5 seconds
Before: miosito.com/wordpress 250ms
After: miosito.com 2.5 sec.
It's probably a problem of configuration of nginx or Fastcgi or other.
Do you have any advice?