FPS optimizer

this mods will boost your FPS. speed up Chuck's loading and make the gaming experience smoother

this mods alone and already powerful but combined with OptiFine it becomes overpowered

Here's a comparison (GTX 1650)

vanilla minecraft ~217 FPS 

 minecraft FPS optimizer + OptiFine ~ 632 FPS

if you want to disable a feature to fix a bug or other the F key will give you access to a configuration interface