Strange laggy window movement with some specific QT programs
I don't know where to post this, but I'm experiencing some strange behaviour with a QT application called "spectacle" which doesn't have such issue on other desktops.
Basically moving the windows is very laggy and choppy, I tried disabling the desktop animation from gnome-tweaks, and the theme of the QT application (it's a QT5 one I think) but nothing changed.
Maybe a video can explain it better.
It's definitely not a problematic bug, but I think this is not a "normal" behaviour
My gnome version is 3.30.2, Ubuntu 19.04 Disco Dingo development version, but I remember this issue to happen as well on Ubuntu 18.04 and Ubuntu 18.10. Linux kernel 4.18.0-13