CLLocationManager获取位置很慢,Swift

这是我的代码的样子：

override func viewDidLoad() {
    super.viewDidLoad()

    // Ask for LOCATIOn-Authorisation from the User.
    self.LOCATIOnManager.requestWhenInUseAuthorization()

    if CLLOCATIOnManager.LOCATIOnservicesEnabled() {
        LOCATIOnManager.delegate = self
        LOCATIOnManager.requestLOCATIOn()
    }

    mapView.delegate = self

}



func LOCATIOnManager(manager: CLLOCATIOnManager,didupdateLOCATIOns LOCATIOns: [CLLOCATIOn]) {
    let locValue: CLLOCATIOnCoordinate2D = manager.LOCATIOn!.coordinate

    let initialLOCATIOn = CLLOCATIOn(latitude: locValue.latitude,longitude: locValue.longitudE)

    self.centerMapOnLOCATIOn(initialLOCATIOn)
}

func LOCATIOnManager(manager: CLLOCATIOnManager,didFailWithError error: NSError) {
    print("Could not get LOCATIOn")
}

但是从应用程序获取位置放入centerMapOnLOCATIOn函数的时间似乎只是很长.获取用户位置时@R_450_11251@什么情况？我正在测试一个wifi连接,所以我知道它不是因为互联网很慢,或者连接不好……

有人有想法吗？