Is there a way to reduce arc faceting in sketch

I need to match edges of customer geometry to my sketches.

The primary shape used in the customer sketch is a spine but it equates out to an arc.

When I try to match the spine with my sketched arc I am finding awful faceting.  Nothing matches up within the sketch.

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Each facet is 3/8 of an inch.

Is there any way to tighten of these facets to where they become smooth?

I have my surface quality set at Very High.

My accuracy is .0004 Absolute.