Mods for 1.21.1
265 mods match your filters.
Improves performance by tweaking mob despawn rules. Say bye to pesky unintentional persistent mobs.
A mod that aims to optimize the minecraft server.
Performance improvements for vanilla AI, with the ability to turn off certain AI behaviors
Quick leaf decay from cutting down trees. Built for fast performance and mod compat!
An efficient and non-locational redstone dust implementation
Speed up your world loading by removing unneeded chunks.
Vanilla Worldgen optimization mod
Attempts to optimize the generation of Jigsaw Structures and NBT pieces
Radium is an Unofficial Fork of CaffeineMC's "Lithium", made to work with Forge Mod Loader.
A modpack utility mod that allows to disable spawning of any entity.
MobsBeGone allows you to get rid of entities spawning in your world in a very simple and straightforward way!
Optimization mod that fixes cases where mobs will be prevented from despawning.
Advancements optimization mod, updated fork of Icterine with added features
This mod fixes a bunch of crash exploits discovered in Minecraft.
Fixes incorrect snow generation on tree leaves MC-119599
Optimises worldgen performance for a better gameplay experience.
A lightweight entity-tick-scheduler for doubling your TPS.
Ticking Entity Optimizations
Adds tags and configuration options for defining how dropped items should combine.
Eliminates awkward strafing – Skeletons now stay focused and shoot faster the closer you get.
Fork of Carpet Mod that fixes PVP-related bugs with carpet fake players and adds some new commands.
A mod that runs all calculations of the railway network on a separate thread parallel to the server tick, which greatly improves performance, especially in large networks.
Fixes a performance issue related to TerraBlender's surface rule api
Async improves entity performance by processing entities in parallel across multiple CPU cores and threads.