Face control is necassary before speed. Feel how to create spin on the ball.
A common mistake golfers make is moving into the ball. Here is how baseball can help with that.
Before you can hit a ball far, you must first learn how to control the face. Learn how to use the face of the driver to your advantage.
Most people tend to practice by swinging as fast as they can. That's like trying to hit a 70 mph pitch when you can really only handle 40.