Hello cadmax,
Just to add some more info to this, the most effective site in measuring a satellite connections speed is at
www.testmy.net. This is also recommended by our engineers when we are escalating a customer site for remote repairs due to slow downs etc. Using manual tests of 12 MB for DL and 2 MB for UL. Hopefully that is where you've been running your tests. If not, feel free to run a few there and post your results for a preliminary review. Hope to hear from you soon.
Thank you,
Chris