Maneuvers are a lot slower, but performed at a higher speed (for the most part). 3D is performed at a slower airspeed (sometimes no airspeed) but the maneuvers are much faster and much more violent. I guess that's the way to differentiate between what I think you meant and what other people thought you meant.

Have you looked up Aresti yet? If not, you might want to....and then you might want to practice pattern/IMAC stuff while practicing 3D. Believe it or not, pattern/IMAC is the best way to learn 3D.