The thing to remember is, the shortest distance between two points is a straight line.
These people who lift their hands and make a wide arc up in the air and then come down on...a wrong note have only themselves to blame. Anything you do in the air above the keyboard has zero effect on what comes out. It wastes time, it wastes energy and it slows you down, as well as having a negative effect on your accuracy. Stay as close to the keys as possible.
Also, if a jump moves upward from a lower note or chord to a higher one, try thinking of it, and practicing it as the opposite direction. Start with the destination note or chord. Think of that as home base, and move to the lower one. That's how I practiced La Campanella.