It is important to understand that sequencing is one of the major ways that the brain organizes information of movement. If you are trying to increase distance, then you have to be aware of this. You will hit it differently, if you change the sequencing of the movements, but if you can increase the speed of all your movements at the same rate, then you will hit the ball the same/yet further. If you have a hard time increasing speed without mishitting the ball, then it is a good indication that your sequencing could use some work.