Well, I am using slow motion, that’s the only reason we bought the GoPro camera to be honest, to have a cheap camera which shoots in high FPS. I tried calling a friend of mine who I hadn’t talked to in ages, to ask him for help, but he didn’t answer… So I called him again later today, and he was able to help me out. If anyone else has the same problem, you should try this.
Go in to options, click on preferences, click on video, and boost the maxiumum use of ram, and remove the thumbnails.