https://www.curseforge.com/minecraft/mc-mods/sodium-reforged

Mod for FPS Boost.

I don't know if there are other optimizing mods in the modpack, but this mod gives a really big performance boost.

16 chunks without mod:

16 chunks with mod:

32 chunks without mod:

32 chunks with mod:

Cool graphics settings menu:

To be honest I don't trust this mod. We've received reports from people experiencing weird issues and crashes, who added Sodium Reforged.

I'm all for a mod that improves performance, but I don't think adding this one is safe.