There's nothing strange about his delivery at all, he does a really good job of telling a true story about his life and this very specific place and fills it with vivid details that help make it seem more real to the audience and add humor to the situation. That's what a good storyteller does and that's why he's doing it. I really can't see how you can look at this and say that he's losing it, it really seems like the kind of bad faith attack that we shouldn't be taking part in. There are so many valid things to criticize Biden that we shouldn't be swinging at windmills with dumb shit like this
When he detailed that you had to wear a bathing cap at the pool if you wore pomade, man, I felt like I was THERE.