Many players slow down their strokes as they anticipate contact with the ball. To hit consistently and powerfully, you need to accelerate as you hit through the ball. Here’s a tip to keep you in the right frame of mind: As the ball approaches, imagine you’re driving up to a yellow light and you want to get by it before it turns red. Increase your swing speed from the moment you start moving your racquet forward and past the point of contact and your strokes will be more consistent and powerful.