Troubles with Sidecar (iPad as second monitor)

New here and recently switched to Apple. I'm using a Macbook Air M2 (15") and iPad Air (2023). I have several very annoying and strange issues when using Sidecar (MacOS built-in feature which should enable me to use the iPad as a second monitor): - During use, my Macbook freezes frequently for several seconds (both video, mouse and keyboard become unresponsive); - During use, SideCard on the iPad totally freezes and I have to reconnect to get i working again; - Since replacing the Macbook (with the same model, to check if it was a hardware issue) I have to go all the way to monitor settings instead of just using the monitor icon in the menu bar. Any help is greatly appreciated! I use this intensively, so fixing this would really help me out. Thanks!