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Something isn't right in what you are telling us. Either you are missing something out, or you are mis-informed. You also have a conenction problem.
You say "we have to use Virgin Media broadband connections due to ADSL speeds being awful", implying Virgin Media Cable, but then in this post you give us ADSL statistics which means a (BT) phone line service is being used for the broadband.
The statistics themselves show the ADSL connecting at 2304kbps down and 160kbps up. The prime determinant of connection speed is the attenuation, which reflects the length of the line to the exchange, and on 52.5dB attenuation you should be connecting at more like 3-4Mbps, if not higher still, and 448kbps up.
The 8.5dB noise margin, which in itself is higher than normal, is taking a few hundred kbps away, but doesn't account for the very low speed and the atrocious upstream.
Something is badly wrong with that connection, probably at your end. Please have a read of my Troubleshooring section
. (Ignore the "Router acting oddly" page).
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost
. Internet connection -
IDNet Home Starter Fibre. Live BQM
"Where talent is a dwarf, self-esteem is a giant."
- Jean-Antoine Petit-Senn.