[4.7.1] - Engine appears to causing a lot of CPU Stalls

Yup, no idea what’s going on. Yesterday I had a really smooth experience, but today it was sluggish again - as soon as I hover my cursor over something the entire editor starts to stutter. This is really annoying when trying to work with blueprints.

I’ll fiddle diddle schniddle with drivers, see if I can find any differences between them.