Bug. Switching the keyboard layout via the CapsLock key loads the system heavily.
I checked the box "Keyboard & Mouse -> Additional Layout Options -> Switching to another layout -> Caps Lock". Switching the layout via the Caps Lock key loads the CPU heavily. FPS also drops heavily throughout the system..
Actually, I probably wouldn't have noticed if I hadn't used this key so actively in cs:go.
Gnome Tweaks 42.beta Gnome Shell 43.2 GTK 3.24.36