Unresponsive GUI and mouse/keyboard input

[Aragorn]

Welcome to the forum!

@NoNa

When browsing the application launcher the gui lags behind by a second or so, if I drag a file or icon around it lags behind the pointer by sometimes several seconds and even when typing I can get a few words ahead of them appearing on screen. If I detach a tab from chrome the whole tab will be stuck for several(10 or so) seconds, slowly moving to wherever I dragged it and often just going back to where it originally was.

From what that sounds like, you appear to have a stuck process. Check your CPU load and process list with htop for anything that might be hogging the CPUs.