Which headphone are you using? This is important to understand what "dynamics" you are talking about.

About Harman Target "average to the masses", it's not just "average to the masses". I don't know why audiophiles think they're special people (sorry for that aggressive take). Harman Target is the same as "two deadly neutral speakers in your head" with a little more bass, and all people like neutral speakers in blind tests (they tested in research). It's not just a "average to the masses", it's sound fidelity.

Maybe you like some "coloration" in the sound of you headphone, that's not a problem. And obviously the Harman Target isn't perfect, it's an average, we have some differences in HRTF and bass volume preferences for example. To solve this, you need to EQ with a tone generator using your own ears.