Celtic Heroes

Since this last patch all of my iPads and my iPad Pro are running extremely hot. I deleted the app and re downloaded..this has not resolved the issue. All of my devices are 2018. I have not purchased plat beucase I can’t play the game for any extended period of time..they are so hot after 15 min that I am scared if I continue it will damage the devices.

Any solutions?

Thanks for your time.