I want to quote a paragraph from a newspaper, the first few words were in large and small caps in the original, so I typed them in upper and lower case:
I can’t find an option to adjust their appearance. Also, I tried the same thing with another font (Adobe Caslon Pro) that I know has the alternative glyphs for true typographic small caps; same result.
I have another document in Deja Vu Sans where they are a different size altogether (half the height of the full capitals). The OP’s small caps were maybe 1/5 the height of full-size caps; I’ve got them at 1/3, 1/2, and what appears to be about 3/4 (which is what Libre Office gives me). Deja Vu fonts do not have a small caps variant.
It looks, though, as though Scriv is applying the small caps scaling algorithm multiple times for non-cap characters, and inconsistently across fonts.