Why it does,not works on iPad mini 2 and 3

Hey ! Epic games many peoples do not buy new models of iPhones or iPads every year I have iPad mini 2 and iPod 6 it doesn’t work I downloaded on iPad mini 2 it don,t work now I will try on ipod 6 but u have to compress the game a bit for older versions of iPads and iPhones plz sorry for my grammar

apex pradator about Fortnite, v3.4.2