Thank you for the feedback!
If its only the menu parallax, that can happen either if your pc is slow or you have the app opened on a secondary screen with dual monitors. I Hope to optimize it better so it glitches way less or not at all in the next update.
The actual game is about the keep do in the demo we planned to give an idea whats the game like, show an adult scene and establish the setting fast. Some games started way too slowly with only dialoge and no events in the early versions. The tempo of intro may get some optimization down the line.