The stutters and lag can be pretty annoying, but in the snowy mountain top area, first part of chapter 2, this area was insanely bad, especially in the rebel camp/area around it part. Noticed it increased when you're going through the area fast/running past enemies. I honestly thought the game crashed at times before it unfroze. Going slow and killing everything helps, but obviously when you die you'll be running past everything you know you can run past to get back there. It still happened when taking it slow in that part. No other part of the game was that bad.
There is a big update coming tomorrow or in the next few days. We know it's addressing slow healing and knockdowns, also speeding up elevators, along with various other fixes. Hopefully it has performance improvements too