move and resize windows

Hello, I am running Windows 11 in Parallels 17.1 on an M1 Pro Macbook Pro, using an external 4K monitor with the Macbook closed (i.e., single display). In Coherence mode, when I have PDF Change Editor open, moving around or resizing that window is terribly sluggish, up to the point it is...

One of my users is using the Mac client to use to our Remote Application Server system. The RAS server is running Windows Server 2016 and one of the apps she is using pops up application windows off-screen. I believe this is because it stores the windows position in the app and she uses that app...