Huge TPS drops on server 1.16.4

Hello, can anyone help me please with that tps drop? what it makes? im begginer in timings reading…

Thank you everyone for help

I think a good starting place would be to update your startup flags. Should be a blue FIX THIS link on the left of your timings page.

Also, I would reduce the entity caps to try to get your entity tick timing down a bit.