I've made several changes, disabled PageSpeed Nginx, deployed Clouflare (paid version), opcache, mariadb optimized, etc but my TTFB is awful, always on the 600-800 ms mark.
If I create a CloudFlare page rule to cache everything (this is the case of Pages articles) TTFB is awesome (around 30 ms), but this cant be used on the forums since it would cache everything, unread post remains unread until CF Expires, etc.
What can be done to improve TTFB for the FORUMS ? I see the same average ttfb on the invision forum itself, on the 600-800 mark, not good imho.
Regards