This is what a change up should look like

That looks to me more like a screwball than a changeup

You can actually freeze the frames and if you catch it right you will see the ball released and the fingers are in a change up grip while the wrist is in perfect positioning.

This is what a good change up does, it fades. But some change-ups just slow and kind of die at the plate as they drop. And some are thrown too hard and don’t break until they go over the fence!