Reduce Lag on FabricMC server!

Server administrators in Minecraft often seek ways to improve multiplayer experiences without requiring players to download additional content. Server-side only mods for Fabric address this by optimizing server performance without altering core game mechanics or affecting players' local clients. While these mods don't guarantee perfect performance, they aim to reduce lag and enhance the overall server experience.

Mod	Description	Version
Lithium	A mod designed to drastically improve the general performance of Minecraft without breaking things.	1.16.4-1.20.2
VMP	A mod designed to improve general server performance at high playercount.	1.18.1-1.20.2
C2ME	A mod designed to improve the performance of chunk generation, I/O, and loading. This is done by taking advantage of multiple CPU cores in parallel.	1.17.1-1.20.2
FerriteCore	A mod that reduces the memory usage of Minecraft in a few different ways.	1.16.5-1.20.2
Krypton	A mod that optimizes the Minecraft networking stack and entity tracker.	1.16.2-1.20.2
ModernFix	An all-in-one mod that improves performance and reduces memory usage by fixing bugs that do not compromise the game experience.	1.16.5-1.20.2
MemoryLeak Fix	A mod that fixes multiple memory leaks in Minecraft. Works in both Server and Client side!	1.17-1.20.1
Async Locator	A mod that makes locating features asynchronous, mitigating associated lag.	1.18.2-1.20.1
Recipe Cooldown	A mod that prevents excessive crafting recipe request from the client to lag out the server.	1.16-1.20.2
Carpet	A mod for vanilla Minecraft that allows you to take full control of what matters from a technical perspective of the game.	1.14.2-1.20.2
Carpet Extra	A mod that adds extra features to the Carpet mod.	1.14.4-1.20.2
Chunky Pregenerator	A mod which pre-generates chunks, quickly and efficiently.	1.16-1.20.2
Spark	A performance profiler mod.	1.16.2-1.20.2
Gotta Go Fast	A simple mod that brings the bugfix for "Player moved too quickly!".	1.17-1.20.1
View Distance Fix	A mod that fixes the fog when having a higher render distance on the client than on the server. The server tricks the client into thinking that it has the same render distance as the client.	1.19.2-1.20.2
LibreExp Fix	A small mod that fixes experience bug after teleporting across dimensions.	1.18-1.20.2
Ledger	A logging mod similar to CoreProtect.	1.17-1.20.2
Bad Packets	A library that allows packet messaging between different modding platforms. This means a Fabric client version of a mod that uses Bad Packets can send a packet to a server that uses the Forge version and vice versa.	1.18.2-1.20.2

Implementing these mods can contribute to a smoother server operation, but administrators should test and monitor performance based on their specific server setup and conditions.

Note: The version listed here might be outdated. Please refer to the mods official page.