Jagged Edges on Text & Shape Layers

Hi there,

I've been experimenting with creating 3D logos, text and shape layers with AE CS6 by using the "shatter" effect. I have noticed that curved letters (like "S") or curved shapes are jagged, even when rendered in full quality (see attached image).

Is this due to a setting in After Effects? How can I smooth this? I have experimented with Ray Trace as an alternative way to extrude, but with only 8GB of RAM I am unable to render out sufficiently high quality 3D text or layers in enough time.

Thanks.