[Q] Stock issues with games and apps possible memory issue. topic

So if anyone here has Brave Frontier I'm sure you know the problem. What happens often is when getting out of the game to switch apps even for a brief text reply and coming back the game resets as if I just opened it. This happens with games as well as some other apps where it acts as though I just opened it fresh even though 5 seconds before I was in the middle of something. Is this a phone issue or a compatability issue?