There are several ways to increase driver swing speed:

1. Improve your golf swing mechanics: A proper golf swing technique is essential for increasing clubhead speed. This includes a proper grip, stance, and body position as well as a smooth and efficient swing.

2. Increase your flexibility: Improved flexibility can help you generate more power and speed in your swing.

3. Strengthen your core and upper body: Stronger muscles in your core and upper body can help you generate more power and speed in your swing.

4. Use lighter golf clubs: Using lighter golf clubs can allow you to swing faster because you won't have to work as hard to generate clubhead speed.

5. Use a driver with a larger head: A driver with a larger head can help you generate more clubhead speed because the larger surface area allows you to hit the ball with more force.

6. Practice your swing: The more you practice your swing, the more comfortable and efficient you will become at generating clubhead speed.

7. Use a driver with a higher loft: A driver with a higher loft will launch the ball higher, which can lead to longer drives.

8. Experiment with your grip: A strong grip can help you generate more clubhead speed, but be careful not to grip the club too tightly, as this can lead to a loss of control.

9. Use a driver with a lower center of gravity: A driver with a lower center of gravity can help you get the ball in the air more easily, which can lead to longer drives.

10. Use a driver with a stiffer shaft: A driver with a stiffer shaft can help you generate more clubhead speed because it will transmit more energy to the ball.