if you aim down the sights and tap fire as fast as you can it removes the slow fire but still gives you the damage boost. What you have shown here doesn't negate anything. When aiming from the hip you get no damage boost but when you aim down the sights you gain the damage boost and the slow rate of fire. So aiming in and then from the hip only gives you a damage boost when you're aimed in. You need to aim in and tap fire as fast as you can to keep the damage buff on but still have max rof.

Awesome