I figured out a way to completely get rid of Control Center lag* on iOS 9.2.1 (this may also work on iOS 9.2) without keeping the hideous Reduce Transparency setting and keeping all blur. It works really well for me on an iPhone 5s. To achieve this, please do the following: • Reboot device • Go to Settings > General > Accessibility • Turn on Reduce Transparency • Go home, swipe Control Center up once • Go back to Settings > General > Accessibility • Then, turn off Reduce Transparency • Swipe up Control Center slowly once again and determine if no frames are dropped I hope this works for you all, as it has worked for me! Please leave feedback. *"Control Center lag" refers to frames dropped as a result of the blur effect of Control Center as it is being completely swiped up.