Hi,

Microsoft is aware of isolated instances of performance impact to frame rates of some apps that utilize DirectX 9 and is working to resolve this in a future Windows Update. This post will be updated once the Windows Update solution is available.

In the meantime, you can work around this by disabling fullscreen optimization for the affected app, or by running the game in windowed mode. To disable fullscreen optimization:

1. From the Start Menu, right-click the affected app and select More > Open File Location. File Explorer will open to the app’s location.

2. In File Explorer, right-click the app and select Properties.

3. On the Compatibility tab, check the box to Disable fullscreen optimizations.

Regards.