Angle body more up the slope and swing a little harder
We are looking to create a clubhead that is traveling down to hit the ball, so take your address position and straighten out your left knee, this will bring your hip back, move the shaft forward and straighten your left wrist
Your legs play four different roles in your swing from address to finish as they provide balance throughout the swing, so the motion of the legs is critical to allowing you to progress through the swing correctly