Hi,

Server TPS is low (down and up spike cpu usage), entities sometimes do not move or like in slideshow and block breaking/placing event don't work. I believe it is caused by your AI mod, but i can be wrong. There is no console error while in game.

debug command results:
profile-results-2021-04-07_14.55.45.txt

What is causing TPS drop ?

I will dig into it more, easy test is to disable AI look helper in the config. If things improve that means our math is less effective on your server then the vanilla math. This can happen depending on your hardware, software, and even jvm flavor being used. I've seen results of different TPS based on which JVM is used.