Dear friend, this is a regular host from Russia, but I still have cloudflare connected, I configured nginx, disabled all unnecessary on my forum, fonts, scripts, icons and that's it. When I first installed xenforo, the speed was like everyone else's. It seems to me that if I turn off cloudflare the speed will become 100%, it will be necessary to test it somehow.
Do not think that I want to slander amp, I just share information, it may be useful to someone or help, or a person may reconsider their beliefs, new ideas always open up in the discussion! Peace and love to all!