Baby_Doc
Well-known member
When you set it to high performance mode, it states what it does. Other than putting your screen at the highest resolution, if you haven't set it that way to begin with, it increases your brightness by 10 percent. It doesn't say that it speeds up the processor in any way. So that's why it makes no difference in your battery life. I can't imagine, therefore, why some have found it makes an improvement in battery life. But I will give it a try.