Connect Basler camera and show video on PyQt5 GUI

Question

I have an application like this 1 with one display to show real-time basler camera into it . I already figured out how to connect to Basler camera and show video on it but the video is not very smooth.

        #Connect to a camera
        for i in MainWindow.camera_db.all():
            if True:
                info = None
                for x in pylon.TlFactory.GetInstance().EnumerateDevices():
                    if x.GetSerialNumber() == i['id']:
                        info = x
                        break

                if info is not None:
                    camera = pylon.InstantCamera(pylon.TlFactory.GetInstance().CreateDevice(info))
                    camera.Open()
                    if MainWindow.viewer1 is None:
                        MainWindow.viewer1 = BaslerOpenCVViewer(camera)
                        logging.warning(f'Camera 1 - serial number: {i["id"]}-OK')
                else:
                    logging.warning('Camera with {} serial number not found'.format(i['id']))

and then I tried

    def update_frame(self):
        try:
            frame = MainWindow.viewer1.get_image()
            # frame = cv2.imread('test.jpg')

            self.load_display1(frame) # take a frame and show it on MainWindow.display
            return frame
        except Exception as e:
            logging.warning(str(e))

    self.time_get_image = QtCore.QTimer(self, interval=1)
    self.time_get_image.timeout.connect(self.get_image) #call update_frame function every 1ms to get a real-time video from Basler camera but it's not work well 
    self.time_get_image.start()

Is there another ways to connect to Basler camera continuous mode and show it on application.