
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.
Quick answer
Which JS Performance Pack release matches 26.1.1 Fabric?
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.
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.
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.
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.
9636073ca8f378ea796b5d13bffac146a7f2f0f3 · Modrinth version gjIvugXc · Project link unavailable Client only19f4bedeb5fbfe1be295c653288b4d38a7a84576 · Modrinth version wGnmDPvI · Project link unavailable Side not labelled832f9047bc4af13587709c74f7c37e1c8579d1eb · Modrinth version GFM8zh9J · Project link unavailable Side not labelledbe4bf927bbb84f0f57783aea8c6624890680b4d2 · Modrinth version l1mM6Ov7 · Project link unavailable Client only7bd02b375c6ffdfdcdad053113706b95ebd289f3 · Modrinth version izb7HEM9 · Project link unavailable Client only2ed66a7f5cf81c8f4b17a551a1f7371ef99a45f7 · Modrinth version HV67Kt1R · Project link unavailable Client only62ac7ed3bbc0b920428bcfc18d1962836b84c391 · Modrinth version zAi8nQHj · Project link unavailable Client only5fe5204ccc96a17340570db66a5b4127b8176246 · Modrinth version uLkEd5dr · Project link unavailable Side not labelled620cb137a9dc69ce86f3114f19d9eedab16366f5 · Modrinth version bdhiINYC · Project link unavailable Side not labelled6b69eaa6323da9f7933206d55cdb09ea3299cde3 · Modrinth version H7KycYXE · Project link unavailable Client only51efa22cfe15e4068167cc96da430496afa3ab7e · Modrinth version ly8rADfr · Project link unavailable Client onlyeac76ff0f3753422c61b2c44487d0d195d88d4bc · Modrinth version d5ddUdiB · Project link unavailable Side not labelled0bc5865bcb7f2f09d85559a58fccddcfd335f44d · Modrinth version xOA9hbpf · Project link unavailable Client only5f23dc2bae9fa28a18ef1ec6a60c0d6f8fcc5b13 · Modrinth version e4ioH5mG · Project link unavailable Client only2557a2dae9492ab98580a61fb9f209df7a90e733 · Modrinth version kYAGItyj · Project link unavailable Side not labelled7631a4e81fcca6290bc32374a4338148bd2ba1ae · Modrinth version fQBdPR1m · Project link unavailable Side not labelled9f68fd82da95582bd27fb97b90015ce268296132 · Modrinth version cTKaCklf · Project link unavailable Side not labelled0b5cd2531cd3506e431cd2d739da3abceed08ea6 · Modrinth version 3rsoV1bk · Project link unavailable Client onlyef2bae874cb6d0f8b77eb7604ef699c6271dfeb8 · Modrinth version IUqOgV5r · Project link unavailable Client only6e8aa237dc4f4c7f1924504a488397394b8a3374 · Modrinth version qTbYONg6 · Project link unavailable Server onlyc1ce548549ec4517b9393985cefc65389e6f36d8 · Modrinth version b3IPAHgB · Project link unavailable Side not labelledd16f65fec7555be684b8bc923eed05e1b95e6edd · Modrinth version laVM31w1 · Project link unavailable Client only457ea5643de4e537eb44fc117d88886d52cdebf9 · Modrinth version 1bz3AMCV · Project link unavailable Client onlycdb5ab59dc05840c5fc762c3821570c6fa02a8dc · Modrinth version vf7UgZpC · Project link unavailable Client only5841b45d43a693f745bff4ab9ac4d01ab9789594 · Modrinth version svTkvBec · Project link unavailable Side not labelledc180ae8cf90da1abd67c26b5c5e7bf5d795c3b1d · Modrinth version tpQ8eZAo · Project link unavailable Client onlyPick your setup
JS Performance Pack by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
JS Performance Pack versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.