I uploaded a new patch.

I added another thing: Mentioning explicitly that no other optimizations are currently being made. I think this is important because it's often the question that the user is asking themselves. (At least my boss and team members have asked that, and people on Stack Overflow.)

I disagree with your suggestion to limit the change only to veryhigh.rst and link to there from cmdline.rst. I think this is an important piece of information so it should be available in cmdline.rst which is more visible than the technical veryhigh.rst. If you feel strongly about this issue let me know and I'll do it your way.