There is a MessageKit's example from Github, about how we could use chat audio item...It looks like this:

private struct ChatAudioItem: AudioItem {

    var url: URL
    var size: CGSize
    var duration:Float
    init(url: URL) {
        self.url = url
        self.size = CGSize(width: 160, height: 35)
        // compute duration
        let audioAsset = AVURLAsset(url: url)
        self.duration = Float(CMTimeGetSeconds(audioAsset.duration))
    }
}

I wonder if there is some more performant way to do this. If we have 20 voice messages, one after another, this code will cause a delay of few seconds on iPhone XS.

I am sure that this is the issue, cause if I remove current code, and replace it with self.duration = 0, it loads instantly.

So can somebody give some suggestion? I guess I could use async loading of duration property of AVURLAsset. But that kinda improved performance, but still its a bit laggy.

Also I can't get this data currently from my backed, so I wonder if there is some way to improve performance of this.