The best solution is to move into a different lane.

I recently returned from Victoria. There the motorists have had the fear of God put in them. As a result, there was a car in front that had their CC set at 1 km/h under what I had mine set. It was absurd. I could not go past (or it would take ages) without resetting things. In the end, I set my CC to 2 km/h higher (still within the allowed tolerance of 3 km/h) to get past them and then I dropped it back once in front and moved away.

In NSW, it was absurd. I had my CC on, and so was maintaining a steady speed. I passed a Hilix towing an empty boat trailer. Well, he did not like being passed so he tried to go past in the left lane preventing me from getting back there. Then a while later, he slowed down again and I went past. Well he did not like that and s went past in the left lane again.

I could not care less if he was in front or behind, just that he could not maintain a steady speed.

Unfortunately we are fixated on speed and the road toll. What we forget is that by having such a tight tolerance on speed, motorists spend more time watching their speedometers than the road ahead, and on the road toll, we forget that we are getting much better at saving the lives of those injured. Just a few years ago, many we save now would have died of their injuries. We have more and more accidents, just fewer die. That is not simething we should be aspiring to.

It is frustrating. We need to think of different ways of doing things.