There are many different possible situations related to the  ball’s speed, direction, and bounce connected to your opponent’s position. The given recommendations are universal.

The ball’s speed for the volley stroke is less than the ground stroke but the reaction time of your opponent is about two times less. That’s is the advantage of using such strokes.

The varieties of the situations related with ball’s speed, ball’s direction, ball’s bounce as and opponent’s position are very much. The given recommendations are quite universal.

The ball’s speed of volley stroke is less than the ground stroke but the ball’s way and the time for reaction of your opponent is about two times less. That’s is actually the advantage of such strokes.