Hi Marcelo! Thanks for posting.
It looks like you are making a double escape motion, which means you are making a little semicircle with the pick. By itself that’s not a bad thing, lots of great players do that, like Steve Morse and Olli Soikkeli. Is this your maximum speed? Turn off the drums / metronome, and just play a single note as fast as you can. Is it faster than this? If not, then this might not be totally efficient. If you can go faster and you don’t feel tension, then this motion is find and I wouldn’t worry about it.
Re: “pickslanting” you are using a downward pickslant here. You are not doing “two way pickslanting”. But that doesn’t matter, because double escape motion doesn’t require a pickslant. So don’t worry about what the pick looks like. Changing the way you hold the pick won’t change the way it moves. You can only do that by changing the way it moves.
If this is as fast as you can go, then there might be an issue and you might try to find a motion which is more efficient so you don’t have to work as hard. But if you can go faster than this with no feeling of tension, then it’s find and I wouldn’t worry about it. Let us know.
Also, when you post clips, try to include enough regular speed video so we can see what the motion looks like and sounds like. Slow motion is good for details but bad for seeing the overall smoothness and hearing what it sounds like.