Dunno. I use a (definitely outdated by now) Sony Tablet S, which is a 1GHz 2-core with 1GB of RAM - so weaker than the S4 Mini - and I don't rembemer any freezing. Although I haven't played it much, because I dropped the game pretty quickly.
So I won't really try to give really any guesstimates for it, but since you didn't lament the general framerate, just the freezing, it could be OK...