Windows 10 Game Mode Negatively Impacts "Call of Duty: Warzone" Performance
The "Game Mode" toggle Microsoft introduced with Windows 10 Fall Creators Update (1709), is designed to improve gaming performance by prioritizing system resources for the game at the expensive of background processes, and preventing Windows Update from performing any automatic tasks (such as GPU driver updates, which would most certainly ruin your game). With "Call of Duty Warzone," however, this toggle appears to be having the opposite effect.
The Game Mode toggle reportedly causes Warzone to stutter, and sometimes even freeze. Apparently Windows 10 doesn't recognize it as a game. The issue affects users of both AMD and NVIDIA graphics hardware. It has so far been reproduced on the likes of the GTX 1080 Ti, GTX 980, RX 5700 XT, RX 570, RX 480, and R9 290. For now there's no workaround other than to simply disable Game Mode in Windows Settings. Find it in the "Gaming" section.
The Game Mode toggle reportedly causes Warzone to stutter, and sometimes even freeze. Apparently Windows 10 doesn't recognize it as a game. The issue affects users of both AMD and NVIDIA graphics hardware. It has so far been reproduced on the likes of the GTX 1080 Ti, GTX 980, RX 5700 XT, RX 570, RX 480, and R9 290. For now there's no workaround other than to simply disable Game Mode in Windows Settings. Find it in the "Gaming" section.