How to hit walls of death without vibrating

[Rapta]

I know how. I have a technique. Has this already been figured out?
If you successfully describe how I do it in the replies, I will tell you if you are correct or not, and if it ends up being that nobody knows how I do it, I will share the technique with you all.

Here is a video (skip to end wall of death section 3:20) showing the technique in action.

I could hit even faster if I wanted to as well.

How do I do it?