Ok but did you follow the process? Did you do the tapping test on guitar? Did you tap against something attached to the strings (like sticky notes)? And so on? At which point in the process, does your motion slow down? The theory behind this process it, at every step, you should be fast
CtC theory is that you should be fast from the beginning, not speeding up by practicing slow. If you can’t play whatever you play fast – it means that something needs to change.
That’s why I recommend following the step-by-step process that Troy recorded, where you basically translate the tapping test to a tremolo through a series of steps, at each step, you change only one variable. And at each step you should be as fast as you were at the beginning when you were doing the tapping
This is not dart thrower. Dart thrower is a wrist motion. What you recorded there is elbow motion