u/Abject_Bookkeeper580

I made a bike rack for the bed of my truck recently. It holds amazingly, but the bike wobbles a little. I have 3 questions I cant figure out.

1. What are some easier to use straps that I could put on this to make it quicker?

2. If anyone here has a in bed bike rack, similar to this, how do you manage to keep the bike from wobbling? Also have you run into issues?

3. Is it bad on the carbon wheels to be strapping them down like this?

Thanks