u/Ok-Hovercraft-3076

Hi all. I am trying to move away from Windows with not much success so far. I have installed Kubuntu LTS and Rider. It is basically a fresh install. I also have my Nvidia driver installed so that my multi monitor setup could work. All plugins disabled.

When I start Rider or change the theme or resize any window, it slows my PC so bad that even my mouse freezes for seconds.

Anyone has any idea what went wrong?

Should I try another distro instead?

It is just a fresh install, so I don't mind switching to another distro.

Thank you for your help in advance.