Fast chipper

You are having difficulty controlling the speed of your arm swing while chipping.

Focus on taking a shorter backswing so you do not need to worry about adjusting the speed of your arm swing.

Make sure the ball is positioned just before the bottom of your swing. You need to accelerate during your chips and continue accelerating after you have made contact with the ball. You should still feel this acceleration during your follow through and do not be afraid to take a much longer follow through than your backswing.