I now have the creators update on 2 machines (my insider machine updated to the build automatically). Stability has been much worse than before. I've had to reboot at least once a day since updating. Still trying to get to the bottom of it. My insider machine showing LSASS.exe is high utilization (15-20) all the time until I reboot. It's definately having much more than a 20% performance impact though.
Other one, my apps keep complaining of out of memory.