Template:Rendering mr nurbs angle tolerance
From TOI-Pedia
Angle tolerance uses an adaptive tessellation method which uses more subdivisions in areas of high curvature. The goal of this method is to add subdivisions where they are needed to capture sharp features, while at the same time using just a few subdivision in large, flat areas where they are not needed.
At first try the 'Angle Tolerance Low Quality' and do a test render. If the curves or surfaces are still jagged, try lowering the 'Angle' value to get a higher quality.