Siri has no delay.

Siri has no delay. On my iPhone 5s when I press the home button to get back to the home screen Siri pops up. And in many other situations where I'm pressing the home button for a very short amount of time. I can't find any settings to adjust the amount of time you have to hold down the home button to make Siri pop up. I recently updated to iOS 9 and that's when this problem started occurring, I'm now on 9.0.2