Maybe you and I encounter the same problem:
Independence was always 0, when playing a game of nuclear obvious, that is, GPU-0 is almost full GPU-1 is 0, just like there is no doubt their is not the time to buy a computer cheated.
A few days can be considered solved
In the advanced power options, there is a dynamic switchable graphics -> Options Global settings set to maximize performance, will default to using a single display.