If I'm reading this right, you're located in a rural location and the question is upload/download rather than the actual WIFI performance in your residence?
If you have one of the outdoor antennas that connect to say a ZTE modem, a very good upgrade is to purchase a 2nd identical external antenna and take advantage of the ability of the hub to have 'two' external antennas. Have them point pointed toward whichever tower you've selected to use, but turn one 90 degrees relative to the other i.e. still pointed in the same direction but spun about so that the plane of the antenna is 90 degrees to the other. That antenna array is old school in radio and I found it happens to work quite well with these cell systems (my current post of diminished Telus service notwithstanding)
