Even with auto-aim and her high skill level at shooting, from the distance he was and with his high mobility it made her rapid pistol shots go off target as she fired upon him. Very few people managed to make her miss now-a-days even in rapid fire, so he was certainly a person worthy of her talents. It would indeed be hard to hit him at things currently were without focused aiming, a luxury that she didn't have, so perhaps another distraction? He'd reach her soon enough even with all of the weaving she was forcing him to do, so she needed to buy some more time, even if by just a little. To achieve such a feat she quickly swiped the stun disk out of it's compartment with her free hand and tossed it between the two, shielding her ears and closing her eyes briefly as the disk detonated and rang out with a flash of light and a painful high pitched noise. She then opened up her ears and pointed her gun to where she expected him to be, hoping he was still there and would be feeling the effects of the attack, making him an easy target to finish off with her remaining 6 bullets in the clip.