Recent major iOS updates have been great for performance. Where they’re being let down is in robustness, particularly where cloud syncing is involved. The iOS

Recent major iOS updates have been great for performance. Where they’re being let down is in robustness, particularly where cloud syncing is involved. The iOS updates most notorious for slowing down iPhones were generally slower for a good reason. Most famously, iOS 8 introduced whole-disk encryption and the oldest compatible phones ran like crap.