I have NUC and have the exact same issue. I tried some of the fixes mentioned earlier in this thread and it seemed to have worked on original video I was doing tests on. Tried a few other video files and noticed that it is still a bit hot and miss. Reverted back to 8.2.5 using LE backup and no stutter. Even in shots where there is a huge pan. That's usually when you notice clear stutter. No stutter in 8.2.5 with panning shots that I can notice.
Probably just one of those things that gets ironed out with later releases.