Performance Problem [solved]

do you use ajax and session?

https://www.codeigniter.com/user_guide/l...oncurrency

I added 

Code:

if (session_status() == PHP_SESSION_ACTIVE) session_write_close();

before loading the views. No change in performance, it's still happening.

Also tried without the if test:

Code:

session_write_close();

Still the same issue.