Comedy is highly highly subjective. If you really want I could pick a comic I particulay like and break down why it works, but that isn’t going to make you think it’s funny. It either works for you or it doesn’t. If it doesn’t, that’s ok. Nothing is funny to everyone.
I’m not a huge fan. Sometimes it’s funny, sometimes it’s very funny, but more often it’s neither.
But my complaint isn’t the same as OP’s. The jokes themselves often weren’t that great to begin with, and even if they might have been with the right delivery, he tends to way overwork them. And they’re normally surrounded by really awkward clumsy dialog.