He didn't use FL off or mods in this one. Trust me, I was just as shocked.
I have the same problem on my computer as well. His reps look speeded up, just as mine do. Anyone that's edited a video with my stunts probably has noticed by now. It just comes from having a shitty-ass computer. I've tried a lot to fix it, but it's just not going away.
As for the stunts, they weren't horrible. The bails really shouldn't be in the main part of the video, they're more of credits stuff. Try to keep stuff that you intentionally wanted to do in the main part of the video, not just something that happened by accident. You had a really nice airgrab at the mall, it looked pretty sweet. Try not to repeat stunts. Just because it's done with a different bike doesn't make it a different spot. You're learning, but you're getting better. Stay honest, and you'll go far.