Thanks for taking the time to post on the community.
My apologies that you are not achieving the up to 120 Mbps broadband speeds.
From checking your connection, the downstream power levels are too low at -8 dBmV and the upstream is too high at 54 dBmV. For this I would like to arrange an engineer appointment to adjust these for you. I've sent you a PM (purple envelope icon, right corner) with some details for you to confirm please.