I have purchased a brand new Samsung Galaxy S6 Edge just a few days ago. What I noticed instantly, however, was that it lags and quite intensely so, particularly during scrolling pages, be it when browsing pages on the web or when skimming through the Google Play Store. It really stutters every single time and it's beginning to annoy me. It's absurd that my old iPhone 4S or the Sony Xperia Z Ultra don't lag at all, the former being an ancient phone and the latter being almost two years old. This leads me to think something isn't quite right with my new Edge... I installed the Nova Launcher because that's my favourite launcher and I'm used to it. Could it be that Touchwiz is better optimized and runs more smoothly than third-party launchers? I didn't do the test as I had heard so many less than stellar reports on Touchwiz that installing a launcher was the first thing I did. It's only been a few days and I truly love this device already. I definitely do not want to have to return it. I'm hooked on the beautiful AMOLED screen, the aesthetics of the device itself, pretty much everything looks and feels great except for the heavy stuttering and lag. Basically, I'm hoping that you can give me some advice and tips on how to optimize the performance of the phone. I want to use it as my daily driver, so please let me know what steps you recommend I take to make optimal use of the hardware and increase the performance. All suggestions are highly welcomed. Thanks!