You need to understand that each part moves different distances and different speeds but they all move at the same rate of rotation. Your body is the most inside part of the system so it moves only 4 to 5 inches and only 2 to 3 miles per hour. The hands are in the middle of the system so that they only move 3 to 4 feet and 6 to 10 miles per hour. The clubhead is the most outside part of the system so it moves 13 to 16 feet and 60 to 100 miles per hour. The key is that they all move at the same rate.
Many people try to hit the golf ball farther by driving their legs or turning their bodies faster.
This throws the system off and the swing out of snyc. Remember that the clubhead moves the most in the swing and should be moving the fastest. So work on keeping your swing in sync by understanding how the system works.