Best way to profile on raspi

[ThuGie]

Hey guys,

So i have been running mcserver on my pi with a plugin called skyblocks.
Works kinda ok, plugin still has a few bugs but thats it.

Now. i did notice when even if we did nothing and we just stand at spawn.
The cpu will stil be around 99% and random we even get delays in chat.

This should not be happening right ? we got no mobs spawned at the time.
Just 2 players @ same chunk, doing nothing.
No world generation what so ever, yet its @ 99%

Is there a way i can find out what of mcserver is using it ? profile it or something ?