I might've mentioned something similar previously on the forum, but I have been noticing very severe framedrops lately during preview on setups with monitors of different resolutions.
I first dismissed it as some isolated incident, but when I tried hooking my new beast mode laptop to a monitor (with different resolution than the laptop itself), it quickly became unworkable. A blank project with one platform object chugged along at 20 fps during preview. The moment I went back to a 1 monitor setup, it all worked again. Is this a C2 issue or a chromium issue?
Edit: This happened on all browsers I tested on (Chrome, Firefox, NWjs)