Major frame rate instability during the prologue, beginning at the scene with the burning house through the first meeting with the uncle. Setting the Deck's FPS cap to 30 can mitigate it for the most part, though it will stabalize on its own when nighttime is over, and I didn't encounter the problem again anytime during a full 2.5 hour playthrough.

Even outside the prologue, there are frequent single-frame skips and stutters in most areas. Though it's only really a cosmetic problem that doesn't interfere with gameplay.