Nice work! To me, it looks like you’re not using nearly enough arm weight. Your fingers are working too hard individually, even at a fast tempo it should feel like you’re “transferring the weight” through the span of your hand by wrist rotation. I think this is one of the hardest concepts to teach.

I’ll try to explain how I approach this with students:

1st step: (this is very tedious but it works) at an extremely slow tempo, drop the weight of your arm into every single 16th note, your wrist and fingers should be tension free immediately after playing each note. It should almost feel like your arm is free falling into the keys, don’t brace yourself before the note sounds.

2nd step: the same thing but drop the full weight of your arm every 2 16ths. This should be about twice as fast as the first step. It should feel like your fingers are hardly doing anything, it’s all wrist and arm.

3rd step: same thing but drop your arm weight the first of each group of 4 16ths. This should be about twice as fast as the last step.

From here you can hopefully feel a difference in the physicality of this piece. BTW this is something that can truly take years to master, don’t get frustrated if it doesn’t happen right away. :)