That’s not as bad as the nerve conduction latency. Also, on a grand piano, the hammer generally strikes before bottoming out, unless you play sufficiently loud

That’s not as bad as the nerve conduction latency. Also, on a grand piano, the hammer generally strikes before bottoming out, unless you play sufficiently loud, the timing dependent on how loud you’re playing. You have to begin moving your fingers or hands downward into the keys farther in advance when playing quietly, which is a whole thing when your hands are at different volumes. The mass and mechanical advantage of the finger affect the timing and volume, too.