Solution:
Please plug the dongle into the wall charger or plug it in to the car, once the red light is on, connect the dongle's wifi with your phone , then input 192.168.50.2 in your phone browser to log in the backend.
1. Please access product backend 192.168.50.2 to set the Media Delay to 1500.
2. If it still stutters please modify the Category to CD.