Power levels look ok but a lot of errors which may be historical. Can you power off the Hub and restart it which should reset the counters to 0 - check they have. Then check after a few hours/days whether they are building up.
You dont say.. are you testing over wifi or ethernet cable?
Also, if you think that you have a BB speed problem, then to check the speeds coming in to your Hub properly, and whether they match what you should be getting, you need to do this first.
Make sure your device has a gigabit network card with up to date drivers. Use a new Cat6a ethernet cable to connect it to the Hub - which you have put into modem mode (to ensure only your device is connected). Then boot up your device into "safe mode" (to disable any software on it that could be limiting speeds) and run the test at speedtest.net on 2 different browsers one of which is a fresh download (e.g. Opera?).
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