Back to modpacks
JS Performance Pack project artwork

Modrinth · Minecraft modpack

JS Performance Pack

A lightweight Fabric optimization modpack for Minecraft that boosts FPS, improves chunk loading, reduces lag, and stays close to the vanilla experience.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which JS Performance Pack release matches 26.1.1 Fabric?

Updated 4 days ago
Best match for your filters JS Performance Pack 26.1.1
Game version 26.1.1
Loader Fabric 0.19.3

JS Performance Pack 26.1.1 is a complete pack release for 26.1.1 with Fabric 0.19.3. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 26 mods in this pack file.

Pack setup

How should I set up JS Performance Pack for players and a server?

Use JS Performance Pack 26.1.1 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install JS Performance Pack 26.1.1
Dedicated server setup Match JS Performance Pack 26.1.1
Pack loader Fabric 0.19.3

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Referenced mods 26
Client only 15
Server only 1
Not labelled 10

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for JS Performance Pack?

JS Performance Pack 26.1.1 on 26.1.1 Fabric. The pack contents and setup notes below stay tied to that release.

26 mods in this pack file

The selected pack release is JS Performance Pack 26.1.1. That file is for Minecraft 26.1.1 with Fabric 0.19.3. It contains 26 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is JS Performance Pack?

About Modpack

JS Performance Pack is a lightweight Fabric optimization modpack focused on improving Minecraft's performance while preserving the vanilla experience. It combines a carefully selected set of optimization mods to increase FPS, reduce stuttering, improve chunk loading, and lower memory usage without changing gameplay.

The pack is designed to work well on both low-end and high-end systems and is suitable for both singleplayer and multiplayer.

Credits

This modpack would not be possible without the work of the developers behind the included open-source mods. Full credit goes to their respective authors.

Project description from Modrinth.

Mods in JS Performance Pack 26.1.1

Open any mod on Modpacks.ch to check its files and dependencies.

BadOptimizations-2.4.1-26.1-fabric.jar SHA-1 9636073ca8f378ea796b5d13bffac146a7f2f0f3 · Modrinth version gjIvugXc · Project link unavailable Client only
c2me-fabric-mc26.1.1-0.3.7+alpha.0.63.jar SHA-1 19f4bedeb5fbfe1be295c653288b4d38a7a84576 · Modrinth version wGnmDPvI · Project link unavailable Side not labelled
cloth-config-26.1.154.jar SHA-1 832f9047bc4af13587709c74f7c37e1c8579d1eb · Modrinth version GFM8zh9J · Project link unavailable Side not labelled
continuity-3.0.1-beta.2+26.1.jar SHA-1 be4bf927bbb84f0f57783aea8c6624890680b4d2 · Modrinth version l1mM6Ov7 · Project link unavailable Client only
cwb-4.1.0+26.1.jar SHA-1 7bd02b375c6ffdfdcdad053113706b95ebd289f3 · Modrinth version izb7HEM9 · Project link unavailable Client only
dynamic-fps-3.11.7+minecraft-26.1.0-fabric.jar SHA-1 2ed66a7f5cf81c8f4b17a551a1f7371ef99a45f7 · Modrinth version HV67Kt1R · Project link unavailable Client only
entityculling-fabric-1.10.5-mc26.1.jar SHA-1 62ac7ed3bbc0b920428bcfc18d1962836b84c391 · Modrinth version zAi8nQHj · Project link unavailable Client only
fabric-api-0.155.2+26.1.2.jar SHA-1 5fe5204ccc96a17340570db66a5b4127b8176246 · Modrinth version uLkEd5dr · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.13+kotlin.2.4.10.jar SHA-1 620cb137a9dc69ce86f3114f19d9eedab16366f5 · Modrinth version bdhiINYC · Project link unavailable Side not labelled
fast-ip-ping-v1.0.11-mc26.1.2.jar SHA-1 6b69eaa6323da9f7933206d55cdb09ea3299cde3 · Modrinth version H7KycYXE · Project link unavailable Client only
fastquit-3.1.4+mc26.1.x.jar SHA-1 51efa22cfe15e4068167cc96da430496afa3ab7e · Modrinth version ly8rADfr · Project link unavailable Client only
ferritecore-9.0.0-fabric.jar SHA-1 eac76ff0f3753422c61b2c44487d0d195d88d4bc · Modrinth version d5ddUdiB · Project link unavailable Side not labelled
ImmediatelyFast-Fabric-1.15.3+26.1.jar SHA-1 0bc5865bcb7f2f09d85559a58fccddcfd335f44d · Modrinth version xOA9hbpf · Project link unavailable Client only
iris-fabric-1.11.2+mc26.1.2.jar SHA-1 5f23dc2bae9fa28a18ef1ec6a60c0d6f8fcc5b13 · Modrinth version e4ioH5mG · Project link unavailable Client only
krypton-0.3.0.jar SHA-1 2557a2dae9492ab98580a61fb9f209df7a90e733 · Modrinth version kYAGItyj · Project link unavailable Side not labelled
lithium-fabric-0.24.6+mc26.1.2.jar SHA-1 7631a4e81fcca6290bc32374a4338148bd2ba1ae · Modrinth version fQBdPR1m · Project link unavailable Side not labelled
modernfix-5.27.19-build.1.jar SHA-1 9f68fd82da95582bd27fb97b90015ce268296132 · Modrinth version cTKaCklf · Project link unavailable Side not labelled
modmenu-18.0.0.jar SHA-1 0b5cd2531cd3506e431cd2d739da3abceed08ea6 · Modrinth version 3rsoV1bk · Project link unavailable Client only
moreculling-fabric-26.1.2-1.7.2.jar SHA-1 ef2bae874cb6d0f8b77eb7604ef699c6271dfeb8 · Modrinth version IUqOgV5r · Project link unavailable Client only
noisium-fabric-2.8.5+mc26.1.2.jar SHA-1 6e8aa237dc4f4c7f1924504a488397394b8a3374 · Modrinth version qTbYONg6 · Project link unavailable Server only
placeholder-api-3.0.0+26.1.jar SHA-1 c1ce548549ec4517b9393985cefc65389e6f36d8 · Modrinth version b3IPAHgB · Project link unavailable Side not labelled
reeses-sodium-options-fabric-2.2.3+mc26.1.2.jar SHA-1 d16f65fec7555be684b8bc923eed05e1b95e6edd · Modrinth version laVM31w1 · Project link unavailable Client only
sodium-extra-fabric-0.8.7+mc26.1.1.jar SHA-1 457ea5643de4e537eb44fc117d88886d52cdebf9 · Modrinth version 1bz3AMCV · Project link unavailable Client only
sodium-fabric-0.9.1+mc26.1.2.jar SHA-1 cdb5ab59dc05840c5fc762c3821570c6fa02a8dc · Modrinth version vf7UgZpC · Project link unavailable Client only
yet_another_config_lib_v3-3.9.6+26.1-fabric.jar SHA-1 5841b45d43a693f745bff4ab9ac4d01ab9789594 · Modrinth version svTkvBec · Project link unavailable Side not labelled
zoomify-2.16.1+26.1.jar SHA-1 c180ae8cf90da1abd67c26b5c5e7bf5d795c3b1d · Modrinth version tpQ8eZAo · Project link unavailable Client only

Pick your setup

JS Performance Pack by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

7 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

JS Performance Pack versions and loaders

1 of 7 releases match
Clear filters

Looking for an older file? The official Modrinth project page is in Resources.