Hey @kalokagathia thanks for filming this!
Initially I couldn’t guess what might be holding you back / generating this feeling of stickiness, because your hand movements looked pretty smooth!
Now I watched the slo-mo version a few times and noticed a little thing - may or may not be on target, let me know!
It seems to me that you start on the middle strings with a “pronated” forearm orientation (similar to Tuttle / Grier), but when you reach the B string you rotate into a more “supinated” orientation (probably similar to Andy Wood).
It may be that this flip-flopping of the forearm is partly responsible for the feeling of discomfort and/or the speed limitation. In principle, you could play the whole pattern just using the Tuttle/Grier setup, so you could give that a shot.
Let us know if that makes sense / how that goes!
PS I see you are a MIM subscriber, have you already gone through the wrist section of the Primer? It contains more details one the basic idea I’m talking about.