I use opera infrequently when I need to do testing in it.therefore I would not be surprised to get updates almost every time.
30mb would be about 20 minutes so that sounds right.
I have no dials or add ins
The solutions are really no go for Joe public compared to a setting which I guess is why opera is still minority browser and I don't need to test in it much.
I thank you for your answers but urge the developers to think a little more about things like this.