What the Tech Reviewers Aren’t Telling You about the iPhone
Chris Pirillo

Glad someone like you brought attention to this issue Chris! To be clear, this frame drop issue also occurs at times on the regular iPhone 6S and hasn't improved at all since iOS 9. Apple seems to be ignoring any feedback regarding the frame drops on the iPad Air 2 multitasking screen also. Apple really needs to address this, there is no excuse for such powerful hardware to be dropping frames during simple animations.