Poradniki
How to Fix Minecraft Server Lag
Lag on a server usually comes from too many loaded chunks for the RAM, or from a heavy plugin or mod. Ping, which depends on distance, is a different thing. Start with view distance.
Lower view and simulation distance
These two settings decide how many chunks the server keeps loaded.
- Open your world and go to Settings → Game options.
- Lower View distance and Simulation distance. Each plan has a limit, and the panel warns you when a value can cause lag for your RAM.
- Click Save options. The server restarts.
Players' render distance
Ask players to keep their own render distance at or below the server's view distance. Anything higher is wasted.
High memory use is normal
A Java server keeps most of its memory reserved, so the memory gauge sits high even when nothing is wrong. Look for real symptoms: rubber-banding, blocks coming back after you break them, or mobs freezing.
Heavy plugins and mods
Big modpacks, world generation mods and some plugins use a lot of CPU and memory. On Paper you can install the spark profiler from Mods → Plugins to see what takes the most time.
When you need more RAM
If the panel says the world is running out of memory, use Upgrade plan on the Overview. Your world and address stay the same, and the extra RAM applies after the next restart.
Bigger plans give more RAM and higher view distance. See the plans page.