The major purpose of me purchasing an Iphone 8 Plus was to take advantage of the camera capabilities. I have recorded sample clips at every resolution X FPS. When I import them to my computer (PC), the playback is fine on windows media player. But, when I try to import then edit the clips on programs such as Hitfilm, Shotcut, Lightworks, ETC. the quality is bad. Every clip jumps, pauses, or freezes while the audio still plays. What am I doing wrong?