---
title: allowsCachingHighQualityImages
framework: photos
role: symbol
role_heading: Instance Property
path: photos/phcachingimagemanager/allowscachinghighqualityimages
---

# allowsCachingHighQualityImages

A Boolean value that determines whether the image manager prepares high-quality images.

## Declaration

```swift
var allowsCachingHighQualityImages: Bool { get set }
```

## Discussion

Discussion If 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 false.