Barb, I believe your request is irrelevant because, speedtest.net will give you speeds from your ISP not your speed from system to router. I assume, having not read all posts that most people here are talking about the latter because most ISP don't provide over 100Mbps (at least where I live). For example the package my ISP provides is 50Mbps and given the time and day it can be higher or lower.
Below is what I'm talking about
But to indulge you...
The problem is that no everybody is getting the same result. Look at mine
5 times faster