Everytime I hit the home button it pops up and I have to wait for it to do it's own thing. I recently spoke with family who also have iPhones and they say the same thing. The problem is you press down for it to read your fingerprint as it's so slow at doing it, then it ends up being slightly too long and it pops up. I dunno why every reviewer says Touch ID is fast because on every apple device I've used, it take a few times or a few seconds. I wish I could turn that off too but Apple Pay forces you to use it.