My Italian isn't good enough, and i don't know why the 2nd screenshot is relevant. But on my Redmi 2 i have never seen a "control for choice performance or balanced for cpu". Why do you think there should be one?
Thank 's for reply
I thought it was a feature of MIUI v6. i have it on Redmi 1S
Language is in Italian so see in first image "Consumo"
In the other in app Battery "Utilizzo CPU"