This is terrible! He's on a balcony speaking to a crowd, not close-up in a studio. And it's meant to be a fiery oration, not an understated monologue. This could work for Brutus' speech, maybe, but not Antony's.
Every performance is an adaptation of the original work to a different medium, place and/or time.
Also the whole point of the speech is that its tone and meaning changes radically as it goes.