I’ve done a clean installation and after a while everything started stuttering immensely.
Some strange symptoms include, the +add panel option when you click with your right-click in desktop disappears after 1 second, and when I open the widgets tray they keep refreshing ? appearing and re-appearing I don’t know the correct way to describe it.
I don’t very much know what to do, I’m a huge fan of Manjaro but as it stands my installation is frustrating.
Welcome to using nVidia with the KDE desktop. That and not resuming from sleep/hibernate correctly (black screen every time) are what made me switch to gnome/budgie.