You don't mention it, so I'm assuming that you are using the optional PP375 MC/MM phono module?
From the info posted, I'd say your weak points are your phono stage and cartridge.
I listen to vinyl, CD, SACD, and DSD files to take advantage of the best of all worlds.
My vinyl rig can compete with my SACD/CD player (Esoteric DV-50S) in sound quality but it is 3x as expensive.