That's not how humans operate though.

Humans use every clue they can get to predict the trajectory as early as possible. For example most players use a roughly similar technique for a certain stroke, e.g. the forehand topspin. They also tend to have a pretty narrow angle that they usually play it, relative to their body and their movement. Players use that predict where the ball will move, and position themselves accordingly. And they start that movement before their opponent has touched the ball.

Some players can deceive others by bending their wrist right before ball contact, which sends the ball in an unexpected direction (but that usually comes at the cost of an increased risk of missing the shot).

Similarly, the size of the stroke limits the pace (and spin) you can apply to the ball; when the opponent starts a short stroke, you can be sure the shot won't be fastest, and move closer to the table.

The movement of the "bat" is tied to the physical limitations of the arm and the positioning of the body. Something that can't be deduced or even perceived clearly from the movements of this robot.

As I mentioned in a previous comment, it would be important to know how many weeks of preparation and training against this sort of robot the player had before the match.