I literally ONLY experienced it during that first cutscene. Anyone here saying performance is atrocious seems full of shit to me. Even the DF stuff showed it was basically always above 30 with very rare dips to like 28-29 fps.
I'm pretty sensitive to framerates and I struggle to find any performance hiccups so far, aside from the intro cutscene section which was very noticeable.
all of this
the first ever cutscene is the only time where shit really hit the fan. I haven't seen anything as bad as that since