I am also having this issue. I am on an M1 MacBook Air. This issue started happening when I upgraded to macOS Monterey yesterday.
Every click in Studio is delayed by like 3 seconds. I can’t open scripts unless I right-click and press “Open.” Overall, the whole script editor and explorer window is completely laggy and almost unusable now.
It seems there’s currently a bug with all apple devices right now, making a lot of things useless unless you’re viewing the viewport; while you’re editing scripts, interacting with the explorer, properties, or any other widget for that matter is bugged.
For me it kinda slows down my workflow, but clicking out of scripts onto the viewport is a workaround.