welcome into the future… Reduce your game settings if your pc airflow can not bring the heat out of the pc case if your system run at 100% load. Its not a fail of any game that it use 100% of your system.
PS:: and the simplest setting: set a usefully fps max limit for your system… vsync can also be helpfull.
then I no longer wonder about reports in Warning: Your graphics device has encountered a problem 