When I scroll, say in the optimized for iPhone 6 and 6 Plus Tweetbot, or in the App Store, instead of the smooth scrolling everyone is used to and loves about iOS and iPhone, it stutters and jerks. My brother has an s5, and it performs better than this, as does my iPhone 5. I have restored through iTunes and set up as a new phone to no avail. My uncles 6 is butter, and I wish that this issue had been mentioned in reviews before I purchased the phone. If it acts like this brand new, it will be horrendous in a year or two. Just general unrefinement everywhere, feels like I'm running a beta on my phone. My question is, is the scrolling lag and choppiness due to the scaling for the 6 Plus, or could it be fixed in an iOS update?