Why does the suspension look like i drove over a rock?

Ok so first, we got rained on 3 different times and all thow we dragged the track after each rain shower, the track was just plain cold.
The butt odometer said the tire hopped and slipped off the line. but my gopro shows no tire slip at all. But the suspension bumps like it just drove over a rock.
This is a 2 minute video that shows the launch once at regular speed. Then super so mo, the 2nt time.
It make it super blurry and the sun reflecting off the inside of the rim dont help the quality any better. Take a look and tell me you thing is happening here.