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# CADisableMinimumFrameDurationOnPhone

A Boolean value that allows your app to access frame rates higher than the system’s default.

## Discussion

Devices with ProMotion displays allow apps to dynamically request a frame rate
they prefer. If you set this key to `YES`, your app can request any frame rate
the display supports. If you set this key to `NO`, frame rates higher than the
system default are unavailable.

For more information on refresh rates, see
<doc://com.apple.documentation/documentation/QuartzCore/optimizing-iphone-and-ipad-apps-to-support-promotion-displays>.

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