You sound choppy when you speak. Here's why
It's not your speed. It's not your breath.
It's where you put the stress.
Natural speech has a rhythm. You rush through the grammar words and linger on the content words. The ones that carry the meaning. When that rhythm breaks, the sentence doesn't flow. It sounds like someone reading out a phone number.
Listen back to yourself on a voice note. You'll hear it straight away.
Have you ever actually listened back to yourself speaking?