Microsoft may be adding a feature to Windows that minimizes other application needs to improve game performance. As reported by Windows Central, the “Game Mode” seen in test builds of Windows 10 lets the operating system prioritize a videogame over other running software and diverts resources as needed. Analysis suggests the mode works similarly to how the Xbox One handles the protocols for games versus other applications. How much of an improvement users can expect is unknown, or if the Game Mode feature will be available to games outside of those from the Windows Store.
As for when the feature will be implemented, the suggestion is that users could see an announcement along with the upcoming Windows 10 Creators Update.