The player moves too fast; I'm tapping to dodge and I go farther than I want, and run in to a bullet. Also the physical layout of arrow keys, requires a bit more coordination than a D-pad when doing sensitive diagonal moves. This is something that a focus-mode would fix. or for me, gamepad controls.
Or, another interpretation is that there is nothing to fix, and the controls being how they are is part of the challenge / fun.
I don't want to make a big deal out of this, I liked the other 99.9% of the game experience. You managed to make a challenge that gets harder, and making me the correct amount of angry, making me want to stay and try harder