I'll admit that I am rather closed-minded when I consider Dylan as a performer, although as a poet & songwriter I consider him to be quite good. I have a hard time listening to HIM doing most things, & yeah, at age 53, I've prolly heard most of it at one time or another, with the exception of his newer stuff, which I've managed to miss somehow.
Pick any artist that's been popular, & 90% of the time, they could take one of his songs & outperform him on it. The Mamas & The Papas. The Band. The Dead. Manford Mann. Hendrix. Me (& I ain't even popular!). It ain't hard. As a performer, I find little to appreciate from him.
He was the "one take guy." He'd go in the studio, slop his way through a song one time & say "okay. That's good enough." Hard to respect that, as a person that tries to perfect his performance in a studio setting (or live, for that matter!).