Frame drop server

When i spawn a base the sever has a frame drop of 100fps that doesn't go away after a reboot.
The frame drop will not go away until the base is destroyed

"a base" as in any base, or a specific base, if option number 2, Post the file somehow.

i have tried 4 bases of my own, all 4 of them do it.
These are very extensive roleplay bases, I've already removed the elevators and the frankenstein from the base,
I thought it could be because they don't work well in copy paste, but it keeps getting big frame drops.

I have a player on my build server that made a roleplay base that has 19k entites. Anyone within viewing range of it, they drop to basically 10 fps or less. I go from 170 to 15 - 20. 

I would say that Copy Paste does not do much once something has been pasted, and therefore it should only be the base affecting it. Weird it goes away with a reboot though indeed, but would be good to know a bit more.

Thanks for the replies, and sorry for the late reply.
i can't find the problem. it's not the plugin i also have a problem with helis, if they are at bases the fps goes down too,
i think the best is to install a new fresh server for next wipe