     private func remove(files: [LogFile]) {
         Log.debug("Will remove \(files.count) files")
         for file in files {
-            DispatchQueue.global(qos: .background).async {
+            DispatchQueue.global(qos: .utility).async {
                 try? FileManager.default.removeItem(at: file.file)
             }
         }

    
    private lazy var dateFormatter: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateFormat = "yyyy-MM-dd-HH-mm"
        return formatter
    }()
    

        case number(Int)
    }
    
    public enum FileTime {
        case minuteBased
        case dateBased
    }
    
    private var fileHandle: FileHandle!
    private let saveInDirectory: FileManager.SearchPathDirectory
    private let appGroup: String?
