I can only compare the demos but there seems to be something wrong with the framerate of the localized PS4 version.
I noticed people in the demo thread mentioning stutter and after playing it just now I saw it myself. It's microstutter where a frame is skipped every now and then. Not everyone will see it but it's there and has nothing to do with my system.
I looked around a bit more and saw someone mentioning that that's not the case in the JP version, which is perfectly smooth, even the demo. So I tried that, and they were right, no stutter. Absoluely smooth. I was trying to make a comparison video, but it sadly doesn't come across very well in recorded 30FPS footage.
But if you're sensitive to framerates, try it yourself. Walk around a bit one the overworld, turn the camera, it's there in the english build but not in the JP one.
I really need to know if that's the case in the retail version, because it's extremely distracting and shouldn't be there.