Sprint LTE speeds will depend on the coverage on the area you are on. At Raleigh, NC I have checked that the coverage is mostly LTE excellent signal and LTE Plus. The LTE plus speeds goes from 12-30 Mbps on downloads and 2-3 Mbps on uploads. For regular LTE the speeds goes from 6-8 Mbps on downloads and 2-3 Mbps on uploads.
Please provide me with your nearest cross streets and ZIP code to verify if there is any outage affecting the services around you.