Why do I have less line traces on a laggy computer?

So I’ve noticed something today.I have a good computer and making a multiplayer game project. My mate isn’t that lucky and has a slower computer. In my game line traces are drawn on the sword and I can set how many of them I want to trace. However when I play the project on his computer , much less line traces are being drawn wich makes the game unplayable (as the line traces determine the hits). Anyone has an idea why this is occuring?
Thanks in advance :slight_smile: