Hi! I have an iPad mini "original" or how I should put it. The old stuff. I stopped updating at iOS 6 and despite being 4-5 years old it runs perfectly. However, now mainly my kids use it and barely any apps work to download as they require ios8. I am VERY reluctant to upgrade the iPad, especially since it now has iOS 9.3 as the only option. Does anyone have any insights? Can the iPad mini be upgraded? Without completely slowing down? Which iOS 8 version would run the smoothest? Thank you in advance!