My fiancé has a mini 2 and I have the first gen air. I believe the two devices are the same, internally. Both devices work great on iOS 10. It's not as snappy as a brand new iPad, but it isn't bad at all. I'm hoping iOS 11 will actually improve the performance as Apple is kicking 32-bit devices off completely. I've seen that iOS will be rewritten to be more efficient because of that.