Well, here's a few thoughts.
For women I would imagine that their skill or art in the bedroom has as much to do with layer of cultural indoctrination. The further they are from that toxic cool-aid the more they can enter the mental space necessary to achieve truly cosmic orgasms.
There's a huge wave of kids now who .1.) got sex with their sex education (porn) and 2. ) did not drink the cool-aid about girls don't poop; Madonna/whore complex, monogamy for life, sex is only for procreating, girls are dirty, etc.
They think nothing of broadcasting their sex life on Chaturbate, etc. So I think it's fabulous that there is so much porn (it will get better) and openness with them.
Which is all to make the point that many of these young guys know more about sex at 30 than guys in their 50s. They are often great lovers. and I mean GREAT. They read the Kama Sutra, they watch instructional videos and they ask questions. Those girls are so lucky!
Then, people experience the world physically varies greatly. Some people's bodies speak very loudly to them, and some are mute.
Some people don't feel where they are in time and space, like a bad dancer, which can be a pain, literally, in bed.
They're on your hair, pushing too hard on your leg, digging their chin into your clavicle ( a favorite )rubbing your pelvic bone to dust. etc.. just in general flailing about the bed. No fun.
The other barrier is personality. If this is a know it all, they're going to be a know it all in bed, which means they don't know jack because they never asked questions and they brush off advice. I have a headache...
So, if anyone wants some feedback on whether or not you're a good lover, I'm happy to conduct assessments.