If the server is filled with players, you will most definitely experience server lag and late responses. Too many monsters spawning in a single world may cause your server to overload as well. ... You can search on the internet on how you can lower spawn limits of monsters in the Minecraft server.
How do I fix an overloaded server?
This guide shows you how to fix an overloaded server in 4 steps:
- Assess: Determine the server's bottleneck.
- Stabilize: Implement quick fixes to mitigate impact.
- Improve: Augment and optimize server capabilities.
- Monitor: Use automated tools to help prevent future issues.
What do I do if my Minecraft server is overloaded?
Memory (RAM)
Whenever your PC or Server is lagging/ hanging, or freezing, the first solution you can use is allocating much more RAM. That should be the case with the Minecraft server. You can try increasing the RAM and see whether that eliminates the server lag.
