I recently uploaded this mod onto a server (~3 players)
I'm playing on Fabric on minecraft 1.18.1.
As the title states, the server was massively impacted by this mod- on normal tickspeed. Any ideas as to why/how to better optimize the mod for my server? It's an excellent mod.

Could you please state which version of the mod you are playing with and if there are any messages in your log you think might pertain to this?

I was using the 2.1.1 version of the mod. I will attempt to replicate the lag and take a look at the log

IW is receiving a major rewrite of its code, expect a major performance improvement in the next version