Summary

Reduces micro-stutters
Slightly improves FPS, decreases textures load (feels diffrent on some systems)
Slightly changes network packet garbages (should not affect to ping)
Could decrease RAM usage sometimes

What actually does the mod do?

Speeds up some calculations (colors engine, maths, texture loading)
Fixes bugs in game code
Prevents unnecessary allocations (sounds, calcs and rendering)
Improves game hashCode() caching
Slightly improves threading system
Faster lighting and biome data access
FaceSturdy block state caching

FAQ

Q: I'm having performance issues, and removing Lomka fixes them!

A: Make sure you are using the latest version. Lomka targets hot-paths across multiple Minecraft versions — if you encounter a compatibility issue, please report it. At the moment the most perfomance friendly mod versions are 0.2.0 and 0.3.0+.

Q: Can I run Lomka on the server-side?

A: Yes.

Q: Forge support?

A: No. Just no, please… (Only 1.20.1, maybe)

Q: Any backports? (<1.21 or <1.20.1)

A: No. The mod's current functionality largely follows Minecraft version 1.21.11 and its structure.

Q: Does Lomka require Fabric API or any other dependencies?

A: No. Lomka depends only on Fabric Loader or NeoForge Loader, without any dependencies.

Q: Mobile devices support?

A: Is it actually starts with Lomka? Cool. That's all.

Q: Can I use Lomka in a modpack?

A: Yes. Lomka is absolutely free and open-source. 😎

Q: Does Lomka have a config file? (Lomka v0.3.0>=)

A: Soon as possible. Againly the maintained version is 1.21.11. Maybe with time will be added but currently mixins can be disabled by editing lomka.mixins.json inside the mod's archive.

Bug Reporting

When reporting a bug that only appears with Lomka installed:

Report it on the project's issue tracker (not to other mod authors — Lomka's mixins are surgical and unlikely to cause crashes in unrelated systems).
Try to reproduce the issue without mod Lomka first.