I have the Criterion Bluray from a few years back (which I guess without bothering to look is HD) and I thought it made it feel more like a TV movie. This may be a film that works better in standard def. Or it could just be what I'm used to.
Maybe check TV settings. If you have smooth frame or fake interpolation on, it automaticity switches films to 60fps, which creates this made for TV look.
Just a week ago, Criterion re-released Withnail & I in 4K: https://awardswatch.com/criterion-collection-may-2025-brings...