It started happening immmediately after updating to iOS 10, and not just on my phone. And that's just the start of it; iOS 10 has tons of other inconsistencies

It started happening immmediately after updating to iOS 10, and not just on my phone. And that's just the start of it; iOS 10 has tons of other inconsistencies and annoyances. I used my several-year-old iPhone 4 the other day and it was a way better experience.