My retina iPad mini feels like it keeps getting slower as time goes on. I'm wondering if it is simply the fact that each new iOS takes much more processing power to operate. Or the fact that my iPhone X is ridiculously fast and that exploits the old mini iPad's performance? Checking the battery health with Coconut Battery shows its design capacity is still 85.9%, and storage space is 64% used. I don't use it for much but when I do it is slow. It often reloads web pages if I'm switching between apps and come back to Safari. Any tips to speed this thing up?