Microsoft is working on a brand new “Game Mode” feature for Windows 10 that will enhance the PC gaming experience by minimizing resources used by running apps to almost nothing and allocating freed up resources to the game, making it run faster, better and smoother overall.
Windows 10 “Game Mode” Will Boost Performance of PC Games, it has been found to include a new DLL file called gamemode.dll, and the repercussions of this could be very interesting . Gaming on Windows 10 might be getting even better.
Speculation is that this could be API hooks for applications to request higher priority with CPU and GPU resources, increasing performance.
It’s also worth noting that Microsoft routinely includes features in Windows 10 preview builds long before they’re due to be released, or even before they’ve been officially announced.