So it's just that first cutscene for now?
Also, Unity is slow. RenPy is faster, if that can work for you. Haxe is cool too.
For now, yes, this is just a UI test and a character introduction. We're currently working on a larger demo. We're using Unity since it has better browser integration and there's gameplay elements we're implementing which wouldn't be possible in RenPy. Enabling hardware acceleration in your browser settings might help, but the game will also be downloadable.