So,

I got an idea to give a try to new Ubuntu Studio 20.10, since now runs on KDE and finally looks like a useable distro,

everything working great except the very basic thing - mouse - it chops, struggles, movement is not smooth, in apps like Kdenlive I can't even click anything properly,

what can I do to fix this problem? already tried various usb ports, I can exclude hardware problem for sure,