You know, Good for you on that!
I don't know for me though, I draw on this with my finger, so on pencil it's assumable that I'm a tad better. I've practiced so much with my finger though it's just second nature at this point.
I draw pretty fast, I'm guessing. It takes me less than an hour to line stuff. The colouring takes less time if I know already what I'm doing. I could be wrong, I don't always pay attention to the time, since I use drawing to get away from it.