Keyboard extremely sluggish on iOS7 with iPhone 4s I've upgraded to iOS7 on my iPhone 4s.  The keyboard, regardless of what I am doing, either texting or entering email, is extremely sluggish - 5 second interval between keystrokes.

What are some ways to troubleshoot this problem?
Try Settings > General > Reset all settings.  I was having the same problem and that fixed it on my 4s.