not game keeps in the background

CARECASAURO

Hello, I'm playing for a few days, and I noticed that when I minimizo the game to see something else on the phone, when I return to the game it starts at the beginning, not permanecento where stopped, that is. You may even find it my phone is bad, but I play other heavy games like UFC, Modern Combat, Real Racing, etc and when minimum and back it stays at the point where I stopped.
The game is excellent out some details, and especially that.;)