CurseForge · Minecraft modpack
Matt Optimized
Boost your FPS without changing Minecraft's mechanics.
Quick answer
Which Matt Optimized release matches Fabric?
Matt Optimized 1.21.8 Fabric 1.0.zip is a complete pack release for 1.21.8 with Fabric 0.19.5. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 42 mods in this pack file.
Pack setup
How should I set up Matt Optimized for players and a server?
Use Matt Optimized 1.21.8 Fabric 1.0.zip 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 Matt Optimized?
Matt Optimized 1.21.8 Fabric 1.0.zip on Fabric. The pack contents and setup notes below stay tied to that release.
The selected pack release is Matt Optimized 1.21.8 Fabric 1.0.zip. That file is for Minecraft 1.21.8 with Fabric 0.19.5. It contains 42 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 Matt Optimized?
Matt Optimized is a modpack that optimizes Minecraft to the extreme. It can triple or quadruple your FPS. It includes the most modern and essential Minecraft optimization mods, each tested individually. It does not include or alter any game mechanics, nor does it add any blocks or other content. It is perfect for low-end PCs or laptops. It improves game stability and increases the frame rate. It is designed to serve as a base for creating other modpacks.
If you run into issues loading chunks, change the chunk update threads to 4 in graphics > performance in Minecraft options.
When you launch the game, you may see a message like the one shown above indicating that SIMD is available. If you'd like to enable it, simply follow the instructions shown in the message:
- Open your launcher's JVM Arguments section.
- Add the following argument: --add-modules jdk.incubator.vector
- Save the changes and restart the game.
⚠️ Important: Enabling SIMD is completely optional. If you don't want to use it, simply open the GPUBooster configuration and change the smart cull mode from SIMD to Base, which is the default option for Minecraft 1.21.11.
If you have this error once you start your Minecraft, simply click accept and you would continue playing normally.
RenderScale allows you to change the Minecraft resolution without affecting the user interface. If the blur bothers you, change the RenderScale setting in Minecraft's graphics options from 50% to 100%. This will cause a 30–50% drop in FPS.
With Matt Optimized: (With RenderScale Mod set to 50%.)

Vanilla: 
Project description from CurseForge.
Mods in Matt Optimized 1.21.8 Fabric 1.0.zip
Open any mod on Modpacks.ch to check its files and dependencies.
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Matt Optimized by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build1.21.11
1 loader build1.21.8
1 loader build1.21.5
1 loader build1.21.1
2 loader builds1.20.1
2 loader builds1.19.2
2 loader builds1.18.2
2 loader builds1.16.5
1 loader build1.12.2
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
Matt Optimized versions and loaders
Looking for an older file? The official CurseForge project page is in Resources.
