Tps Loss 50% random

Hi everyone, i’m having some troubles with the performance of my Pixelmon server.
I already follwed a lot of guides on the forums and i managed to reduce the lag a lot,
but every few minutes the server experiences a random lag spike. Timings are ok except for the full server tick.

Timings when drop tps
https://timings.aikar.co/?id=cf36ab09be3f4be69c281710a0521b87