This is a simple way to control exactly how objects you want maximum. Did you get the lines smooth? If yes, how? Or does it look the same?
The gaps are always there, getting bigger, when you speed up, since you can only draw every tick.
If you have a nasty look of "dots" instead of a line, you can interpolate like I did, drawing more circles between the brush, and the circles.
There is this Formula, I just used for putting this arrow halfway, like this: