I actually kinda like that the special charges quickly and saves my life a lot... even though that means I never use it. So basically I can see where you're coming from even though I like it as it currently is.
I also think with the current way, using the special could still be valid for a player with a different way of playing than me, since even though the special isn't that powerful, it still gets rid of bullets in front of you and can be used quite often. It makes this game different from many bullet hells, but I like that. :)