Hi Jamiewilby..
I think you better get ur facts rite. First I don’t think you are having a 500mb connection I have never heard home user having that high speed. Second bitcomet is using kBs not kbs.. 1kBs = 8kbs.
If you are having slow broadband I guess shud be 500kbs meaning 62.5kBs.
And if you are downloading in bitcomet showing 56kBs you are almost at full speed.
So I do think you better check with ur ISP your connection speed, the kbs and kBs write again if you are still having problem