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This is an OpenXR Developer feature, which can be enabled/disabled in the OpenXR Developer Tools App or the Device Portal. To disable this:
- Open the “OpenXR Tools for Windows Mixed Reality” app on your HoloLens.
- Navigate to the “Settings” tab.
- Under “Developer Settings,” uncheck the option for “Display frame timing overlay.”
Alternatively, you can also disable this feature in the “OpenXR” tab within the Device Portal.
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