How to stop Lag/Skip on mouse click UE5?

Im having an issue whereas every time i so muck as click on any drop down boxes or right click to bring up options, the editor starts to lag something awful. when im roaming a scene, its as smooth as butter but again, if I click, its a dead stop for a few seconds and then the cursor is all over the place. running a 5800x, 6700 XT, 32GB DDR4 rig. Anyone solve this or have any suggestions please?

EDIT:

I noticed a few things. the above can be shortened to “an intense drop in framerates” from 120 to 19 on mouse clicks and the editor runs smoother in windowed as opposed to full screen. hope those details help.