In feature film production, the director is generally under pressure to get 2-3 minutes in the can from a 16 hour day. And that’s with the help of the hundreds of people listed in the end credits!
So although you now have access to the technology to record as many hours daily of your fucking as you like, it’s not surprising that without training your film doesn’t have the same visual impact.
Thinking about the set design, lighting, composition and postproduction of your footage is important if you want to look the best you can… and the sex to look as hot as you remember.
Isn’t that why you’re bothering to film at all?