Poldencraft

Fabric’s APIs are lightweight and modular, making porting faster and game instances leaner.

Lithium is a general-purpose optimization mod for Minecraft which works to improve a number of systems (game physics, mob AI, block ticking, etc) without changing any behavior. It works on both the client and server, and can be installed on servers without requiring clients to also have the mod. With the mod installed, you can see on average a 45% improvement to server tick times, resulting in a much leaner game.

Sodium is a free and open-source rendering engine replacement for the Minecraft client that greatly improves frame rates, reduces micro-stutter, and fixes graphical issues in Minecraft. It boasts wide compatibility with the Fabric mod ecosystem when compared to other mods and doesn't compromise on how the game looks, giving you that authentic block game feel.