If you own a Minecraft server, you know the struggle of maintaining a stable 20 TPS. As players explore new chunks, build massive redstone machines, or fly with elytras, server performance often takes a hit. Lag spikes and "rubber-banding" can quickly ruin the multiplayer experience. But we are here to fix this!
Introducing Essentially Optimized (Server). A modpack focusing on bringing best possible performance to your Minecraft server! This modpack is completely server-side, meaning you get drastic performance improvements without your players having to install anything.
⏰ 60-Second Summary of the Modpack
🚀 2x Faster Chunk Loading: Seamless gameplay with multi-threaded chunk generation and a completely rewritten lighting engine. Whether you are teleporting or flying with an Elytra, the world loads faster than ever by utilizing all available CPU cores instead of relying on a single thread.
💾 Reduced RAM Usage: Using advanced memory management and data storage, this modpack lowers the RAM required to run the server. This prevents "Out of Memory" crashes and allows you to host a smooth experience even on budget hardware.
⚡ Optimized TPS & MSPT: By rewriting core game physics, entity tracking, and mob AI logic, this modpack makes sure your server processes ticks efficiently. Resulting a stable 20 TPS and low MSPT, allowing for complex redstone contraptions and higher player counts.
🌐 Smoother Networking: Optimized network stacks and packet compression reduce the bandwidth usage between the server and players. This minimizes rubber-banding and hit-registration issues, ensuring a responsive experience for everyone.
✅ Full Vanilla Compatibility: All optimizations are strictly internal code improvements that respect vanilla mechanics. Players can join with a standard vanilla client, no extra downloads required on their end.
⚡How does it perform?
For this test, we pre-generated a 3,000 by 3,000 chunk area using a server without any mods, and then ran the same test with the Essentially Optimized modpack enabled. And then compared on how long each of these took.
| 3k x 3k Chunk Loading | Time spent | Avg. c/s |
|---|---|---|
| Essentially Optimized (Server) | 00:04:54 | 122 |
| Vanilla Server | 00:09:10 | 65 |
Tested with Fabric 1.21.10 on a 6GB shared hosting server with Ryzen 9 5950x (4.5 vCores). Source
That is nearly 2x performance increase just by installing the right mods. Thanks to modern performance mods, this pack often outperforms other optimization solutions by stripping away everything that is unnecessary and ONLY keeping mods essential to performance!
🧩 But what's in the modpack?
Lithium
Lithium is arguably the most essential mod for any Fabric server, acting as a general-purpose optimization mod that works on both client and server. Lithium improves the FPS and server performance by rewriting the game physics and mob AI, but it doesn't change any vanilla Minecraft mechanics.
FerriteCore
A hero we need when it comes to RAM usage. This mod reduces the memory usage of Minecraft in a few different ways. By optimizing how data is stored in the memory, it allows you to run the server with less allocated RAM. It works best when playing with huge modpacks where memory usage can get crazy.
ModernFix
All-in-one mod that improves performance, reduces memory usage, and fixes many bugs in modern Minecraft versions. It drastically reduces the time it takes to launch the server and enables it to run on even less RAM.
Krypton
Optimizes the Minecraft networking stack, which sounds technical, but it’s a game-changer for multiplayer lag. It works by compressing packets and optimizing how the server communicates with players, meaning less bandwidth is used and the CPU doesn't have to work as hard to send data.
C2ME (Concurrent Chunk Management Engine)
a performance-enhancing mod for Minecraft that focuses on improving chunk generation, I/O, and loading times by utilizing multiple CPU cores. Vanilla Minecraft is notoriously bad at using your multi-core processor efficiently, often relying on just one core to do all the heavy lifting. C2ME changes that, allowing chunks to generate much faster by spreading the workload.
Very Many Players (VMP)
Designed for high player counts, VMP optimizes entity and player tracking to reduce CPU load, allowing your server to handle more users before TPS drops.
ServerCore
Gives you dynamic control over performance. It can automatically adjust view distance and mob caps based on current lag (MSPT) to keep the server stable.
Alternate Current
Rewrites the redstone engine to be up to 20 times more efficient. It reduces lag caused by complex redstone machines without breaking vanilla behavior.
ScalableLux
A fork of the legendary Starlight mod. It fixes the slow lighting engine of vanilla Minecraft, preventing lag spikes during chunk generation.
Get It Together, Drops!
This mod forces dropped items to stack instantly and aggressively. It prevents server crashes caused by overflowing mob farms or broken chests.
Clumps
Similar to the above, but for XP orbs. It groups experience orbs into larger "clumps" to prevent the massive lag often seen at enderman farms or grinders.
NoisiumForked
Specifically optimizes world generation "noise" functions. It speeds up the complex math required to generate terrain features like caves and hills.
Spark
A profiling tool that monitors CPU and memory usage. It doesn't fix lag itself but tells you exactly which mod or entity is causing it.
Chunky
Allows you to pre-generate your world before players join. This eliminates the heavy strain of exploration, ensuring smooth gameplay from the start.
That's it! Essentially Optimized is a server-side modpack dedicated to one thing: pure optimization. It is designed to deliver the highest possible TPS and the smoothest gameplay experience for everyone in the server.
