Exactly. It's the problem I had with Walk the Line, Bohemian Rhapsody, and Rocket Man also Ray. The Aretha Franklin Biopic didn't quite do that - but it also focused on the personal over the music.

I found the Judy biopic interesting because it too veered away from doing that to a certain extent, and focused more on her trying to do her final performance. It was told more in the style of a play.

Elvis focuses mostly on his music and how those around him, specifically Parker, attempt to contain lightening in a bottle or manipulate it. Which is far more interesting, than the personal stuff. Because let's face it - biographers are going to disagree with the director's interpretation anyhow, might as well focus on what is for the most part known and agreed on - and how the performer got there.