So here's what I get from the other side of Las Vegas... 25 miles from my server.
As you can see, the numbers for Google and Centrafuse are nearly identical (Centrafuse is actually just slightly better). Now on your screencap, the Centrafuse number are more than 10X worse than Google. So part of the problem lies outside of the Las Vegas metro interconnect area. But more specifically, it is outside of anything I have control over.
I'm totally just guessing, but if I were to point a finger, I'd point at Network Solutions which provides the DNS for Centrafuse.com. They suck giant #$%#$%#% ever since web.com bought them out.