Vector graphics can't be managed into C2, but it's possible, vector graphics are XML or some format can be translated into canvas.
The problem is... vector data is rendered as bitmap in canvas. Try it http://paperjs.org/ press CTRL + wheel mouse to do zoom in, you see it's blurred, you can reset to default, do it CTRL + 0 (zero key), because it's canvas, not SVG element in browser.
Besides animated vectors can be played using ARRAY, it needs to be done with recording, then replay.
There a sample with animated atom using Canvas plugin, no sprites.
You need to accept this limit, the users prefer gameplay than being Graphic Whore