If you are someone who sways in your back swing with too much lateral lower body movement, this may cause you to have poor contact with your shots. Try this simple drill that I use in my lessons all of the time.

Place a golf ball under your trail foot heel right in the center of your heel. This is the right foot for a right handed golfer.

Your goal is to turn normally and at the top of your backswing, you should feel stable on top of the golf ball. If your foot or your shoe rolls, you have too much movement and that could be causing poor contact.

Start practicing with a golf ball under your rear foot to help you get rid of that sway.