does anyone know how to make an iPad mini work fast cause like mine is slow as heck and is like indestructible so like I can't get a new one please help me:(

Seeing as you can't restore it back to iOS10, not much you can do - Apple don't allow prev versions being activated so you'll need to jailbreak and restore an older blob if you can find one.

Apple enjoy making older tech slow so you end up purchasing a newer model - it's a trillion dollar idea that somehow worked.

I have an iPad mini 2, and that thing still runs well. But yea it's starting to feel the pain of being old.

Throw it off a cliff and it'll be faster than ever