Why don't they ever try and make these prequels look like they was made in the 70's?

I'm sorry but it just takes me out of it when these prequels that take place before the original movies from the 70's look like slick ultra HD movies that was made in 2018.

They just don't feel genuine, when you watch them in order it just doesn't work cause you go from slick ultra HD 2018 movies on to old grainy movies from the 70's.

Just look at how they filmed House Of The Devil, that was a modern movie and they made it look like it was shot in the 70's, you'd honestly think it was a 70's movie if no one told you.

I just wish they'd do that with some of these prequels to make them feel like they connect into the older movies.