Performance/FPS Mods for Minecraft Java
Browse 4 free Performance/FPS mods for Minecraft Java — popular picks include LOTR MiddleEarth Tweaks - The Lord of the Rings, Mechanica, Pack Tools.
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1.7.10forge
LOTR MiddleEarth Tweaks - The Lord of the Rings
Vertical Slabs, Better Guardmode, Ally Conquest Fix, /conquestDecay, very customizable, LOTR compartible
1.20.1fabric
Mechanica
A Minecraft modpack that enhances the vanilla experience with new biomes and structures to explore, new items, decorations, new mobs, quality of life (QOL) mods, as well as optimization mods, but most of all, the Create mod!

26.1neoforge
Pack Tools
Common tweaks, utilities and features for modpacks, servers and singleplayer.
1.21.1neoforge
ADQ TWEAKS
Tweaks to the Aeronautics Delivery Quest mod (or TNM), that remove the lag it causes, adds new configs, and a PvP mode.