I've noticed that the iPad mini 1 performs much smoother in many UI areas than my iPad mini 2 - both running iOS 9.1. Most notably are the app switcher and spotlight search. iPad mini 1 - it has all the blurring effects. Almost. It's lacking the effects in the app switcher. How does that contribute to performance? Well, the iPad mini 1 performs excellently here. App switcher is almost 100% perfect, going back to the home screen from here is a little choppy, but nothing even comparing to my iPad mini 2. My iPad mini 2 has all this blurring crap. Scrolling is really choppy, and entering or exiting the switcher is about 20 FPS. What gives? Why can't we disable this unnecessary effect and actually get a smooth experience without making iOS look like garbage? Reduce transparency fixes the switcher (mostly, I STILL see some lags with it on), but everything else looks absolutely god awful. Spotlight search also is literally perfect on the mini 1, as good as or better than my iPhone 6. Why? I can see that the blurring looks slightly worse, almost with a little grid, it doesn't look that bad though. I noticed this on the iPod 5 as well, which has a Retina display so it's not the mini's non-retina resolution. If you go into the switcher from spotlight on the mini 1, the home screen card stays in the switcher, but changes back upon going back to the home screen. iPad mini 2? It changes back while you are still in the switcher, full laggy animation and everything. There seems to be some low graphics settings enabled with iOS for A5 devices, helping them out. The new devices need this as well, though! Another example is the iPad 2 and 3. They have the necessary blurring (folders, dock, etc), but the laggy things (such as the keyboard, control center, Notification Center, banners, spotlight, Siri, and headers) have been disabled. I would prefer the iPad 2/3 UI over the beautiful yet not-so-beautiful lag fest we get on the iPad mini 2/3 and Air. (Possibly iPad 4 as well but I'm not sure, never used one extensively) Apple already took the blurring out of slide over on pre-A8X devices, it's the same gray transparent effect that iPad 2 and 3 have. Why can't they do the same thing, or at least add an option to A7 iPads? It would ultimately fix 90% of the A7 iPad lag issues that have been occurring since iOS 8, and even in iOS 7! Sorry, just a little rant with some observations. I'm absolutely sick of the crap my iPad mini 2 has been giving me in terms of UI performance. Stuff needs to be toned down and/or fixed and optimized because a 20FPS app switcher is not acceptable.