Had to lookup a video of his performance. The fastest speakers somehow enunciate all phonemes when played back slowly, but Lee just at 25% is running notes into another. It doesn't help that he keeps winking at the camera instead of fully concentrating like high-performers do.

It's as if Steve Woodmore started slurring words and claimed an even faster Guiness record. The difference is most of us have great hearing for words, but not so great for music.