Lag spikes / fps drops

So, My server recently got increased to 150 slots

But lately im having alot off lagg in my server,
Can it be that my map is to small for amount of players? (3.2k map 150 players)
To many bases maybe?
I wipe map every week, bp's biweekly


According to host my cpu-memory are all fine,
But fps drops regurarly from like 100 to 40,


Happens mostly during night times

If you know anything to decrease it please let me know.

And yes i have alot of plugins but i dont think any should cause this lag.

 

You mean it happens when it's night time in game?

 

No night irl.

 

check and make sure all your plugings are up to date and not kicking out constant errors.
do server.save and check what your ent (entity) count is.
I noticed when I ran a x2500 gather server that when a lot of building/upgrading or explosions were going off it would hit the server pretty hard. If its just momentary lag try watching the servers control panel and see if CPU/RAM usages spike at night