I'm going to disagree somewhat with Sweaty Tryhard down there and say that I like the idea that your velocity is tied to how far off you aim in theory. When you aim far away from your character, it's usually because you're trying to be more accurate with your shots, and I dig the idea that this can have tangible gameplay costs associated. That said, the effect seems like it might be a little overstated here, and it does make this game pretty insane to control. Good idea, good build, but I probably would have had more fun with it if everything were about half as much as it is right now.
Alternatively to that, if I could use my speed as a more reliable escape option (instead of banging against an insta-kill wall) that might make the idea more workable as well.