That was the first thing that stood out to me. It was like he was yelling at the audience. Clear it comes from his temper. He does NOT like to be questioned, and he does NOT like anyone telling him he's been wrong, or that his policies are, or correcting him when he lies.
Second thing noticeable to me was he repeated empty lines a lot, and lied about his policies. Painting himself as having made strong headway in fighting pollution was ridiculous.