Had same issue, my problem was not enough hip rotation in backswing and a VERY high right shoulder coming through at impact. Now I stand slightly further from the ball, for more bend at the waist, and my backswing trigger is left shoulder and hip starting synchronized. Coming into impact I feel like I'm hitting a low tennis backhand and don't move my head until I feel my right shoulder move under my chin. Corrected my path issues as well as timing issues, and gave me a straight ball/ 2 yard draw off the tee. Hope you can take something from this. Good luck