Good optimizer for vanilla mc with many players?

[7quit]

Good evening, is all the optimisation also good for a vanilla Minecraft server?
Because I've been looking for a server optimisation on the net for a long time.

[YouHaveTrouble]

On vanilla you're very limited in things you can do, just server.properties basically.
If you want pure vanilla server without bukkit changes I strongly suggest running fabric with performance mods like lithium.