Performance issues

Actually my server has 300/400 players and i’m using Velocity.
The problem is a huge CPU usage. My dedicated server is a game 2 of ovh game with 3800X and 64gb of RAM.

Velocity dump: https://dump.velocitypowered.com/yozurufewo.json
Spark sampler: https://spark.lucko.me/VQufqJ1EjC#VQufqJ1EjC
HTOP SCREEN:
https://prnt.sc/10lf76p