Oh no, that has gotta be frustrating! 
The editor in it’s entirety is slow in general. You know the little green blipping animation up the top right (I think the tutorial button), the animation would go at 1 fps. When opening any windows, they would take about 1-2 seconds to open. In the first frame, it would half open, then the next second, it would fully open the window.
In blueprint, if you try to move around, it moves at 1 fps.
I should mention my Nvidia driver is currently 361.43 if this helps.