Very slow upload and download speeds - Time Warner Internet

This question is about "Very slow upload and download speeds", with Time Warner Cable internet and apps. In its television commercials, Spectrum advertises 100 mbps up/download speeds for its Internet service; however, I am not getting anywhere near that speed on my own setup, using an Ethernet connection. (My Internet TV freezes and often becomes unwatchable for the same reason.) Why would Spectrum advertise these high speeds when very few, if any, subscribers are getting the upload and download speeds the commercials say we should get?

Please do not go into a technical discourse on why my speeds are so slow. I do not know anything about the inner workings of computers and would just get confused by a response that goes into the technical reasons why my speeds are not as fast as the television ads say they should be.

Very slow upload and download speeds?