I started using VRchat mods for safely features but recently also using a mod that disables world's post processing, the difference in FPS in unreal. Turning off garbage PP that's in every world now straight up gives me 20-30 FPS. Every. Single. Time. That is, unless it's 25+ people and I'm CPU limited on frames. For those of you running on 90hz this also means that many times the game drops you to half frames on 45 where you could, without stupid world PP, be running smooth 90.