hello! Title says it. I updated my iPhone 6 128GB to iOS 9.2 and BAM! I immediately notice that multi-tasking gestures (swiping through apps as well as swiping them up and away) is stuttery, laggy, and jittery. All of those bad things! It's been a while and I've restarted my phone several times so it's not just indexing. Anyone else experienced this??