I was experimenting with slow motion. I set the GoPro to 1080p 120 fps. Once I imported it to my computer in Premiere I modified the clip as follows: Interpret footage --> Assume this frame rate: 60fps. This is what I saw in a Youtube video on it; they said that to get the best slow motion you should go half the recorded frame rate. Well, it slows down the video for sure, but the motion (I was recording my car) is somewhat jerky and still has motion blur. The camera was still, on the ground. So what am I doing wrong?