Makes sense for Hulk, not so much for Anakin. Dub him if you want, but his face is fine.
As for what makes the OT look more retro, I’d say it’s mainly down to most screen GUIs looking like they were made for a Magnavox Odyssey. Joking aside, it’s down being seemingly based on lines rather than pixels, like a more advanced version of a Game & Watch or calculator.