Complete Guide to Optimizing Minecraft Server Performance

If your server is experiencing lag, chunk-loading delays, or low TPS, this guide is for you. Here is our expert strategy for identifying bottlenecks and fixing performance issues in 2026.

1. Choosing the Right Jar

Avoid Vanilla! Use PaperMC or even better, Purpur. These jars are highly optimized and allow for deep configuration of gameplay mechanics.

2. Optimizing paper-world.yml

The core of Paper's optimization. Adjust entity tracking ranges and tick-inactive-villagers settings to save significant CPU cycles.

3. Optimizing purpur.yml

If you're using Purpur, take advantage of its extra settings like disabling certain brain AI tasks for mobs that aren't being interacted with.

4. Entity Capping

Entities are often the #1 cause of lag. Use plugins like EntityManager or MobSpawnSettings to keep mob counts under control.

5. View Distance and Simulation Distance

The most impactful setting for RAM and CPU. Set your view distance to 6-8 and your simulation distance to 4-6 for optimal performance.

6. Using FastChunkPregen

Pregenerate your world before players join! This removes the CPU burden of generating new terrain while players are online.

7. Removing Heavy Plugins

Some plugins are poorly coded and constantly eat CPU cycles. Use the "/timings" or "/spark" command to identify which plugins are dragging you down.

8. JVM Flag Tuning

Aikar's Flags are still the standard in 2026. Ensure your startup flags are correctly configured for your RAM allocation.