The technician didn't give you accurate information, as Amazon Prime works fine with HughesNet, as do Hulu and Netflix. However, all 3 are finicky when it comes to congestion, satellite latency, and internet latency.
To have speed issues addressed in this community, first you will need to follow the procedure detailed here: https://community.hughesnet.com/t5/Tech-Support/Think-you-have-slow-speeds/m-p/110034#M74607
If you have any other options for internet, you can always try those.
Good morning briannabertrand,
We're closing this thread since we never got a reply from you. If you still have concerns, please start a new thread and include a detailed explanation so we can more effectively help you.