Apex host, but my server supper laggy only 4 players

Mine server (apex host) gets super laggy very offten , but cpu or ram never gets to max.
I guess there are some plugins that are lagging server very mutch.
can someone help?
mob stacker is a must have, maybe there are some configuration i can do?

plz help
i cant rlly understand the timings page, im rlly new to this

Plugins (7): CoreProtect, LaggRemover*, NoAFKFishing*, NoPillager, SAML, StackMob, WorldBorder