I ended up replacing Preview with PDFExpert because I was really annoyed with the way that Preview apparently stopped pre-loading/caching pages (at least I thin

I ended up replacing Preview with PDFExpert because I was really annoyed with the way that Preview apparently stopped pre-loading/caching pages (at least I think this is why pages are blurry for a moment each time you go backwards or forwards to a new one). It was pretty pricy, but I'm really happy with it.