Overheating Problems

Love the game but the biggest problem Im having is that I cant play the game not even for 10mins before my phone starts getting hot. Then when the phone starts getting hot I start having problems with playing it. Its the only app on my phone that does this. Its really upsetting because I have to rate this 3 until the problem is solved :(

TJ Swift about Pokémon GO, v1.39.1