Optimized FPS Modpack FAQ

Open the Mods button in the game menu and confirm Sodium, Lithium, and Phosphor are listed and enabled. You should also see a noticeable FPS increase on the debug screen (F3) compared to vanilla, plus the Sodium video settings screen replacing the default one.

Sodium replaces the vanilla video settings menu, so open Video Settings and you'll find render distance, graphics quality, and performance options in Sodium's own layout. Some options are split across tabs, so check each tab rather than assuming a setting is missing.

The most common cause is a shader pack or resource pack that's too heavy for your GPU, or settings carried over from vanilla that Sodium handles differently. Disable shaders first, then lower render distance and simulation distance to see if performance recovers.

Yes, the pack is built to support shaders through Sodium's rendering pipeline. Enable them in Video Settings under the shader options, and pick a lighter shader pack if your FPS drops too far.

Use the Mods button in the game menu to see what's installed, then add or remove mod files through your mod loader's mods folder. Keep performance mods like Sodium, Lithium, and Phosphor enabled, since removing them defeats the purpose of the pack.

Stuttering usually comes from memory pressure or chunk loading rather than raw FPS, so check that you've allocated enough RAM and that your render distance isn't forcing constant chunk generation. Lowering simulation distance often smooths out spikes more than lowering render distance.

It works with most mods, but mods that replace rendering, lighting, or world generation can conflict with Sodium, Lithium, or Phosphor. If you see crashes or visual glitches after adding a mod, remove it and test again before assuming the pack is broken.

It works out of the box with sensible defaults, but you'll get the best results by tuning render distance, simulation distance, and graphics quality to match your hardware. Shader users should also adjust shader settings separately.

Phosphor and Lithium change how lighting and some game mechanics are processed, which can cause subtle differences from vanilla behavior. This is expected and is part of how the pack improves performance.

Delete or rename your options files in the game's config directory and relaunch, which regenerates defaults for Sodium and the pack. You can also reset individual settings through the Video Settings and Mods menus without wiping everything.