URGENT: Random, occasional server slowdown

(Java, 1.20.1, Forge)

Hello,

I have been having an issue where the game ends up creating lag at some random point in time during the run. Upon restart, it is resolved but it keeps happening and I am at my wit's end on how to resolve the issue.

I would be very grateful if I could get some support on this.

https://spark.lucko.me/8alxMmY5d2

Thanks in advance!