A lack of connectivity between your lower and upper body causes the clubface to lag, so try this split-handed drill to get your lower body weight flowing through to the finish
The roll of the right leg in the swing is very misunderstood in golf, it is extremely important for control and distance, as the club comes into impact the right knee, foot and ankle roll in and at the finish the right thigh should catch up with your left thigh
Increase your accuracy and control by playing the ball slightly back in your stance and shortening your swing