That is a bad net speed for ADSL2+ Kigo.
Is you connection speed going up and down?
Or is it constantly like that?
And where did you test to, the Melbourne servers?

I just did a test, Sunday11.20am Sydney time, Sydney to the Perth servers and got.
7.61mbs
.82mbs
ping 71ms
Distance 2050 miles.
But as you know I'm less than 1Km from my exchange and very close to the CBD, so my speed is always going to be way faster than yours.

They have already installed the optical cables in my area for the National high speed internet, just need to get the building wired up with it now, it will be interesting to see if I'll still be alive to see that happen since anything to do with this building takes forever, it's took them 10 months to partially re-render and paint the outside [legal proceedings pending because of that]