The Community is in Read-Only Mode as we get ready to unveil a brand-new experience. Stay tuned something amazing is on the way!
It could be just the website. Try a bunch of different servers - I found a lot of those speed test servers can't handle massive uploads 24/7.
I use speedtest.net a lot and from where I am in california, SD server gives good upload results, but LA gives crap results.
give that a shot and post multiple results and what servers you are using from what site.
industry standard is "at least 75%" of your limits.
Are you using Vista (32 bit or 64?), or XP?
or Are you using a MAC?