A Boolean value that determines whether the image manager prepares high-quality images.
- iOS 8+
- macOS 10.15+
- Mac Catalyst 13.0+
- tvOS 10+
true (the default), the image manager prepares images at high quality. This option produces better images, at a high performance cost.
For faster performance when preparing large numbers of images—such as while the user is scrolling quickly through a collection of thumbnails—set this property to