There is a fix for lagging mouse movement while playing games in 8.1. The patch addresses problems with 22 games variations and more if you are computer savvy. The Microsoft Support website has launched a page with download links for the update that cover the 32-bit and 64-bit versions of Windows 8.1, along with a download for Windows Server 2012 R2
Microsoft's support site says the patch fixes the problem for the following list of games:
Call of Duty: Black Ops
Call of Duty: Black Ops - Multiplayer
Call of Duty: Black Ops II
Call of Duty: Black Ops II - Multiplayer
Call of Duty: Black Ops II - Zombies
Call of Duty: Ghosts - Multiplayer
Call of Duty: MW2
Call of Duty: MW2 - Multiplayer
Call of Duty: MW3
Call of Duty: MW3 - Multiplayer
Call of Duty: MW
Call of Duty: MW - Multiplayer
Counter Strike: Global Offensive
Counter Strike: Source
Deus Ex : Human Revolution
Deus Ex : Human Revolution Director's Cut
Hitman Sniper Challenge
Half Life 2
In addition, people who download and install the patch can extend it to include other games that are not on the official list which are affected by the same mouse lag. The support page includes the rather complicated procedure to enable this extra support, which involves going into the Windows 8.1 registry.
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