1) Receive Good Training in Fundamentals of the Swing, then Practice it
Before you can get good tempo and great golf swing technique, you need to have someone show you the right way in the first place. By getting high quality instruction from a professional, your body can learn the ins and outs of the proper golf swing. It is also a necessary first step in getting good tempo in your swing. Part of proper golf swing technique is getting your body to learn to repeat the mechanics. Your body learns movements by repeating them, so you must practice your proper golf swing. Build the muscle memory so that the mechanics are right there and you are one step closer to great golf swing tempo.
2) Swing Drills With Training Aids
As important as it is to practice your golf swing techniques, it is just as important that you know how to do that. The easiest way to understand the golf swing in all its complexity is to break it down into stages. There are a number of drills your instructor can recommend to help break down your swing and practice different parts. In addition to the drills you learn, adding a training aid can help you develop solid golf swing techniques. A training aid helps your body learn the movements and the feel of the positions you need to get in a good golf swing. By getting your swing hones, you tempo will follow quickly.
3) Golf Fitness
You swing a golf club with your arms and body. Those parts are all made mobile by muscles. So, in order to have proper golf swing techniques, you need to have good golf fitness. Find a program that will help you and you will be surprised at how quickly your good tempo will develop.