In .62, and before, it was very easy to zigzag, and serpentine just by using your mouse, moving it left to right b/c no inertia.
In .63, this is reduced, but it still can be done in forms shown below.
You can do A/D A/D spam constantly, and also use the mouse moving it left to right, to assist with the serpentine/zigzag motion.
Stamina kinda mitigates it, but it still exists, and people are easily able to doge bullets.
Big issue that needs to be fixed.