Other

Although FO's mods do an admirable job at optimizing the game's performance for most devices, you may sometimes need more targeted optimizations.

Video Settings

Check the tooltips in Video Settings for detailed information about each option's impact.

Option	Description
Render Distance	Determines how far you can see. Lowering this is your best bet, as it has a high impact on performance.
Simulation Distance	Affects entity spawning and movement. Reduce it for large mob farms.
VSync	Limits your frame rate to your screen's refresh rate. Can reduce resource usage but may add input lag. Adaptive VSync is recommended when available. Learn more about VSync.
Max Framerate	Controls FPS like VSync, but manually instead of automatically.
Weather/Leaves	Switching to "fast" mode may improve performance. Try changing them individually, while keeping Graphics on "fancy".
Particles	Adjust the particle rate (all/decreased/minimal) or toggle specific ones individually.
Entity Distance	Alters how far away you see mobs, both in singleplayer and in multiplayer.

Adding RAM

You usually don’t need to allocate more RAM for Minecraft, but for intensive shaders or high-resolution resource packs, consider:

• 2 GB: Light use with reduced video settings

• 4 GB: Standard use for most players

• 6 GB: For shaders, high render distance, or high-resolution resource packs

Follow these guides to allocate more RAM for your launcher:

• CurseForge App

• Modrinth App

• Prism Launcher

• MultiMC

• Minecraft Launcher

Dedicated GPU

Using a gaming computer? Ensure your GPU optimizations are configured:

Update Drivers

• Intel

• NVIDIA

• AMD

Optimization Guides

• NVIDIA GeForce Experience

• NVIDIA Control Panel

  • Additional NVIDIA Settings

• AMD Radeon Software

  • Alternative AMD Settings

• MSI AfterBurner

For Linux users, Intel and AMD GPUs generally require no additional setup, but keeping your system updated is essential.

Fabulously Optimized moderators may not have access to all GPU configurations. Seek additional help from online communities like Fabric Discord.

Additional Mods

Here are some mods you can add that may improve performance in specific scenarios.

These mods may introduce instability or be unsuitable for every setup. Because of this they are not officially supported by FO.

• Nvidium: Optimizes performance with NVIDIA GPUs (not compatible with shaders)

• Methane: Removes light calculations, resulting in a "fullbright" effect

• C2ME: Optimizes chunk loading (very experimental)