Many have already said that she's technically on a very good level. I think her arrangement makes the impression that showing her technique is in the focus here, and in relation to the melody it appears a bit of an exaggerated style.
What makes it a little annoying to listen to it is the acoustics of the room, the recording and the detuned grand piano, also it's too much forte playing especially in the left hand, could be due to the piano responsiveness, too.