My Orgasms Are Really Underwhelming?

Like, they feel nice and it’s a heat in my stomach that spreads to my fingers and toes and I close my eyes, but it’s never earth shattering. It’s just kinda, “Oh, that was nice, wish I could’ve gotten there quicker, but what’s next?” I don’t understand how people, like, moan and stuff and NEED to masturbate or they get frustrated. Maybe it’s just because I’m asexual, but I feel more satisfied taking that first bite of a doughnut, or finishing a good run than an orgasm.