How to decrease driver's distance

1. Use lower loft head. It takes maybe 20% more club head speed and 100% accuracy on the sweet spot to hit a bullet-like low stinging shot and achieve the same distance of a 1* higher lofted head.
2. Swing with relaxed muscle. I don't know why this tip is so popular.
3. Try to help the ball up. While increment of angle of attack is good, helping the ball up is not.
4. Swing with loose grip. Like 2, I think the confusion is between technique and muscle.
5. Rotate the shoulder faster than waist. For many reasons as I was told, golf swing is from ground up.
6. Use a closed face driver. The damage crept into the swing, not to mention distance.
7. Swing with lose armpit. While accuracy increase, distance decrease.
8. Swing with weak leg muscle. I think this is because the swing is from ground up.
9. Swing with bad timing. Many say tempo is the key, but slow tempo with bad timing on the swing sequence is more disastrous.
10. Trying not to kill the ball. Intentionally try to swing easy is more a lack-of-practice excuse than a reason why the ball won't go.