Report: Windows 8.1 causing heavy mouse lag in some PC games

Deus Ex: Human Revolution is one of the games affected by the Windows 8.1 update.

If you are a heavy PC gamer, you might not be happy with Microsoft's recent update to Windows 8.1, depending on which games are on your hard drive and which mouse you own. Online reports have come in that claim updating to Windows 8.1 can make some games unplayable due to an "improvement" in handling DPI for multiple monitors.

In this case, according to a post on Reddit, the changes in the DPI framework have caused games that don't use Raw Input or DirectInput to get hit with a massive amount of mouse lag. Among the games that are being affected by these problems are Deus Ex: Human Revolution, S.T.A.L.K.E.R.: Call of Prypiat, Metro 2033 and some games in Activision's Call of Duty series. It also seems to affect hardware that includes mice products with a high polling rate and high DPI.

We have emailed Microsoft to see if they are aware of this issue and, if so, do they have plans to fix the problems in a patch. In the meantime, the Reddit post has some rather complicated instructions on a possible workaround but it may not work for all games that are affected by this latest issue with Windows 8.1.

Source: Reddit | Image via Eidos

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