cx_lowest on 9

[Zoran Kolic]

> No news on the schedule, but with 9.1 Beta, the code has finally been
> fixed to deal with several issues and the correct answer is:
> performance_cx_lowest="Cmax"
> economy_cx_lowest="Cmax"
> And, no, I don't recall where it is documented

Thanks for answer!
I found the thread regarding this topic. Just as you
said. This "Cmax" is somehow contraintuitive to me.
I'd expected "Cmin", but it is me, I assume.
Cannot recall when I was so nervous waiting release
in the branch.
Best regards

                             Zoran