Performance

A mod that changes how multiple types of culling are handled in order to improve performance

Reduce block entity FPS lag with almost no compromises, and improve their visuals

Optimization mod that focuses on things other than rendering

See farther without turning your game into a slide show

Lets you return to the Title Screen early while your world is still saving in the background!

Makes resource packs load in the background, allowing you to do other things while waiting!

Attempts to optimize the generation of Jigsaw Structures and NBT pieces

Updated version of Better Biome Blend, a mod that optimizes Biome Blending

Greatly improve your fps with virtually no side-effects on graphics quality

Async particle tick/rendering

Instanced rendering for entities and block entities using Flywheel

Culling something can't seeing

Async is a Fabric mod designed to improve the performance of entities by processing them in parallel threads.

Advancements optimization mod, updated fork of Icterine with added features

this mod changes how Minecraft schedules sounds in order to prevent the sound pool to fill up

A lightweight entity-tick-scheduler for doubling your TPS.

A lightweight fabric mod that changes the sin and cos for better math.

Improve your Create FPS when shaderpack is on, up to 50%

Pauses servers when all connected clients are paused.

speeding up the Event system in Forge/NeoForge

Caches assets to reduce game loading times.

Optimization Mod for Tick Rates

This mod integrates several super-resolution algorithms in Minecraft to enhance performance or visual quality.

Minecraft Optimization Specialist! Greatness needs no words!

Tired of letting the server ruin everything because of ping ? Let your Client optimize by doing more Things

Off-thread event polling

Optimization and multithreading written by n1luik