It may just be the angle, but that seems like a crazy low action. Do you get any fret buzz anywhere along the neck?
If you’ve ever seen any of Dave’s banjos, you’ll notice that most (all?) of his necks are “scooped” near the the rim. So, not only are there no frets, there’s a section that’s actually lower than the fretboard.
I can definitely see me, as a complete novice to clawhammer, having a hard time playing that style with an action that low. I was having trouble with my own banjo at the October camp for what I thought was a low action, and yours looks even lower.