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Optimize My Server!

Modpack

Purely performance server modpack that decreases memory usage and keeps the server vanilla.

Downloads

1,033

Type

Modpack

Last Updated

Apr 11, 2026

Description

What is this?

It's in the name! It uses mods to optimize your Minecraft server's performance and reliability. It also includes mods that prevent x-ray and are server-breaking.

How do I install?

Load the modpack into a supported launcher. Copy the mods from the mod pack instance's folder and paste it into your server's mod folder. This is currently a Fabric-focused modpack. There is a NeoForge version in this project, but mod support is limited so it is more cutdown.

The Mods

  1. FerriteCore (Decreases memory usage)
  2. Lithium
  3. Krypton (Improves the Minecraft networking stack)
  4. Concurrent Chunk Management Engine [C2ME] (Improves chunk performance)
  5. NoisiumForked (Optimises worldgen performance)
  6. Very Many Players (Improves server performance at high playercounts)
  7. Alternate Current (Reduces the lag caused by redstone dust)
  8. CrashExploitFixer (A port of Papers Improve-tag-parser-handling patch, to fix a server crash exploit)
  9. AntiXray (Prevents Xray)
  10. Async (Improves the performance of entities by processing them in parallel threads)
  11. TT20 [TPS Fixer] (Optimizes how ticks work when TPS is low)
  12. Worldthreader (Ticks each world dimension on its own thread)

Compatibility

Mod Loaders

Fabric Neoforge

Game Versions

1.21 1.21.1 1.21.2 1.21.3 1.21.4 1.21.5 1.21.6 1.21.7 1.21.8 1.21.9 +5 more

Similar Modpacks

Contained Mods (16)

Fabric API

Fabric API

Core API library for the Fabric toolchain

Mod 193,166,359
Cloth Config API

Cloth Config API

Configuration Library for Minecraft Mods

Mod 111,834,636
FerriteCore

FerriteCore

Memory usage optimizations

Mod 101,527,137
Lithium

Lithium

No-compromises game logic optimization mod. Well suited for clients and servers of all kinds. Now available for Fabric a...

Mod 85,672,707
Fabric Language Kotlin

Fabric Language Kotlin

This is a mod that enables usage of the Kotlin programming language for Fabric mods.

Mod 73,697,643
ScalableLux

ScalableLux

A Fabric mod based on Starlight that improves the performance of light updates in Minecraft.

Mod 6,861,155
Concurrent Chunk Management Engine (Fabric)

Concurrent Chunk Management Engine (Fabric)

A Fabric mod designed to improve the chunk performance of Minecraft.

Mod 23,379,595
Krypton

Krypton

A mod to optimize the Minecraft networking stack

Mod 29,318,874
Very Many Players (Fabric)

Very Many Players (Fabric)

A Fabric mod designed to improve server performance at high playercounts.

Mod 11,705,735
Alternate Current

Alternate Current

An efficient and non-locational redstone dust implementation

Mod 7,517,329
NoisiumForked

NoisiumForked

Optimises worldgen performance for a better gameplay experience.

Mod 788,140
Async

Async

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

Mod 421,079
CrashExploitFixer

CrashExploitFixer

A port of Papers Improve-tag-parser-handling patch, to fix a server crash exploit.

Mod 1,243,040
Worldthreader

Worldthreader

Worldthreader speeds up servers by safely running each dimension on a separate thread.

Mod 12,875
AntiXray

AntiXray

A lightweight mod that allows server owners to combat xrayers.

Mod 440,715
TT20 (TPS Fixer)

TT20 (TPS Fixer)

TT20 helps reduce lag by optimizing how ticks work when the server's TPS is low.

Mod 272,940

External Resources