I have been flying DJI drones for over two years, Phantom 3 pro, Phantom 4, Inspire 1 , and, my new Mavic 2 pro.i am trying to figure out why when filming in 4K the playback is jerky, I am using a Sandisk Extreme 32gb sad card.on the iPad Pro using a Gigastone sd card reader designed to be used with iOS. By the same rule if I record in 1080 dpi 30fps it fine.