to be quicker, you have to not focus on the feet.. focus on transfer and keeping your hips underneath you and letting the upper body close.. once you transfer you are ready to throw but are waiting for your feet to get underneath you... instead of feet go too fast and now your fumbling with the grip and the arm is dragging and the weight is already on the front foot.
once the front foot lands, its your bodys way of saying "throw now" so we shouldnt be in a picture pose.. we should be in the process of having the arm start to come forward and our weight starting to transfer..