For those looking for an even more modern experience, the PolyPatcher fork offers additional micro-optimizations, such as faster startup times and further reduced memory leaks. The Ultimate, Must Have Minecraft Mod: Patcher

in Patcher give the biggest performance boost, or are you looking for a list of compatible mods to pair with it?

Stops textures from flickering when two surfaces are too close together.

Notes:

ASM/coremod bytecode patches