SIMPLEFPSB

This modpack is made to deliver a simple but powerful FPS boost for Minecraft while keeping the gameplay close to vanilla. It focuses entirely on performance and you can see up to a 1.5-3x boost in fps depening on what you use.

i tested it on my laptop which has a 3050 and i got 800-1500 more fps and i usually get 600-800 fps and the highest fps i got was 5600+ fps in a world with nothing rendered and sometimes textures dont load you can just refresh the textures by either using f3 + T or click on a texture pack to load it and that works also