SDAnimatedImageView播放apng动画时，在iPhone 13 pro机型上太快，应该是因为手机是120Hz刷新频率导致的，希望修复

[zifeizhang]

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• I have read the Documentation
• I have searched for a similar issue in the project and found none

Issue Info

Info	Value
Platform Name	e.g. ios / macos / tvos / watchos
Platform Version	e.g. 12.0 / 10.14.0 / 12.0 / 5.0
SDWebImage Version	e.g. 5.0.0 / 4.4.0
Integration Method	e.g. carthage / cocoapods / manually
Xcode Version	e.g. Xcode 11 / Xcode 10
Repro rate	e.g. all the time (100%) / sometimes x% / only once
Repro with our demo prj	e.g. does it happen with our demo project?
Demo project link	e.g. link to a demo project that highlights the issue

Issue Description and Steps

Please fill in the detailed description of the issue (full output of any stack trace, compiler error, ...) and the steps to reproduce the issue.

[dreampiggy]

Provide your issue template. At least

Info	Value
Platform Name	e.g. ios / macos / tvos / watchos
Platform Version	e.g. 12.0 / 10.14.0 / 12.0 / 5.0
SDWebImage Version	e.g. 5.0.0 / 4.4.0

[zifeizhang]

[zifeizhang]

👆上面代码执行动画，设置时长没用，看了源码属性playbackRate 这个设置会有用；
1、在60Hz的手机上，使用默认playbackRate 这个值，动画正常播放；
2、在120Hz的手机上，速度感觉快了一倍的样子；
3、看了你的 SDDisplayLink 这个类，里面有 #define kSDDisplayLinkInterval 1.0 / 60 这个宏定义，猜测是否和这个有关

[zifeizhang]

iOS 16系统，苹果13pro

[dreampiggy]

Do you try to upgrade and test result again ?

SDWebImage Version | e.g. 5.0.0 / 4.4.0

[lyandy]

@zifeizhang I guess your issue is the same as #3280

ref: Optimizing ProMotion refresh rates for iPhone 13 Pro and iPad Pro

[dreampiggy]

@lyandy @zifeizhang Can anyone with reproducable iPhone to debug and fire PR ? Maybe iPhone simulator can not reproduce this issue.