Not compatible with iPhone7

I think it was good before the iPhone7 came out I just got mine and I had an account on there since it came out and I havent played for about a year so I re downloaded it on my new iPhone7 and it doesnt detect taps good I try to play fur Elise and it wot detect taps or long taps good it takes it a second or it doesnt even detect at all

Ethan451 about Piano Tiles 2™: Fun Piano Game, v3.0.4