Is everyone's internet and TV as bad as mine?

I have had my service for less than 1 year. I pay for Gigablast and have the largest TV channel package plus phone service. My internet runs between 7Mbps and 60Mbps most of the time with an occasional 100Mbps. The sound and picture don't match often, picture freezes or goes black etc. A Cox service tech changed my TV boxes from wireless to hard wired but it actually made the problem worse. I tried using service again but they charged me $75. This was because they say they don't guarantee performance and since the system is technically providing something, it's my problem. If I don't like it I can pay a $200+ fee and cancel my account. At this point I am willing to pay for a different service. Do any of you know if there is a "Real Gigabit" option in Goodyear? Unfortunately I don't have fiber at the street.