Upgraded from InDesign 2019 and now I have an annoying lagging issue between actions like zooming, page scrolling, selecting objects, etc. Searched and many seem to be experiencing the same thing. I did everything mentioned... deleted, reinstalled, deleted cache, deleted preferences, etc with no luck. I'm on a late 2015 mac using Catalina.

I Reinstalled 14.0.3 and and there is no lag on that version and works great. Seems to be only in v 15.0.x

FYI, I temporarily resolved the lag issue in v15.0.1 by disconnecting the computer from the internet and work offline. Doing so resolved the lag issue completely.