Comment by fL0per

They most probably sold you 'up to 1 Gb' bandwidth, not just '1 Gb'. Overhead is about the same in these cases. Your losses are negligible. It's more painful having 4-5 (on worst time periods/peers) or 6-7 (on best) of the 'up to 10 Gb' (clearly sold as such) fiber access I have.