VanillaFix (Increases FPS): https://www.curseforge.com/minecraft/mc-mods/vanillafix
Phosphor (Optimizes lighting engine, speeds up dimensional travels): https://www.curseforge.com/minecraft/mc ... phor-forge
Clumps (Reduces lag caused by xp orbs): https://www.curseforge.com/minecraft/mc-mods/clumps
FastWorkbench and FastFurnace (Optimizes crafting and smelting):
https://www.curseforge.com/minecraft/mc ... tworkbench
https://www.curseforge.com/minecraft/mc ... astfurnace
NOTE: Change "Disable Recipe Book"=true to false in FastBench.cfg to keep Recipe Book enabled.