Question about Checkpoint Directory

Hello! I have a question about usage snapshots from ios17 sample app on macOS 14. I tried to export folders "Photos" and "Snapshots" captured from ios and then wrote like:

let checkpointDirectoryPath = "/path/to/the/Snapshots/"
        let checkpointDirectoryURL = URL(fileURLWithPath: checkpointDirectoryPath, isDirectory: true)
        if #available(macOS 14.0, *) {
            configuration.checkpointDirectory = checkpointDirectoryURL
        } else {
            // Fallback on earlier versions
        }

But I didn't notice any speed or performance improvements. It looks like "Snapshots" folder was simply ignored. Please advise what I can do so that "Snapshots" folder is affected during calculations.