Hey guys, I was just wondering. I have the iPhone 6S Plus. Yesterday I was on a concert of Czech movie orchestra, where they were playing the Star Wars themes and many of Zimmer's famous songs. I wanted to record few of the best moments. So I captured it on my iPhone at 4K. However, whenever I playback them, the video stutters, it is choppy. But it isn't due to the 30 FPS recording limitation IMO. Every time I play it, it lags at different time of playback, sometimes it's 1:18, sometimes 1:01 etc. It happens with all the videos. I think it could be due to the a) thermal throttling, b) A9 isn't just powerful for 4K yet. Are my conclusions correct? Is anyone else experiencing this?