How to prevent "griding" light/normal artifact

[LifeLand]

I’m getting a strange lighting artifact. It’s somewhat mitigated by per-pixel lighting, but it still ends up looking a bit ugly. Essentially, edges on a curved surface seem to be lighting up brighter than they should be for some reason:

This even seems to effect the sample models, albeit not all of them as being quite so intense:

(Most noticeable towards the spout and bottom of the teapot)

This has a detrimental effect on the appearence of my characters, even with per-pixel lighting:

(Note how the shadow gets broken up by the bright edges)

Is there some way to mitigate this?

edit: By the way, I did check that it wasn’t an issue with my exporter; viewing .obj files produces the same artifacts:

[LifeLand]

I tried pulling one of my models that I noticed this issue into an app other than pView and The effect no longer seems to be present, aside from some apparent shadow banding on the lower legs. Oops!
That said, some of the model’s issues with normals and shadows are still quite exaggerated from how they are in blender. i’ll have to keep working on fixing those!