Having Oculus Rift software download speed issues isn’t really rare and you should definitely not feel alone in this case.
Thousands have that issue.
Unfortunately, this download speed issue can’t really be fixed with one button. There could be dozens of reasons why it acts like that, and sometimes it’s not even from your end, and the fault relies entirely on Oculus.
Even the Oculus support guys themselves admit that their server system isn’t really best and that can result in slow software download speeds: