I got a 2019 MBP, running latest version of mac OS, latest version of Parallels, Windows 11 VM. When connected to my 1440p LG external display, the smooth scrolling in Chrome and other browsers become laggy and choppy. (It's possible other apps and performance in general is affected as well). This isn't a problem in VMware. I've tried reinstalling Parallels Tools.
Hello, We have released a new update Parallels Desktop 20.1.2 which fixes this issue. Please install the latest update as soon as possible. Thanks