how do I make sidecar run better on my MacBook Air 2017

I recently added OCLP to my MacBook so I could use sidecar but whenever I enable it the screen on my iPad 9 has a lot of artifacts. is there a way to fix it, Im pretty sure another thread said there was a problem with an older video encoders or something, any suggestions would be great. also I plan to swap in a motherboard with an i7, would that improve it?