Troubleshooting quality problems
This is almost always due to the quality of your internet connection.
If you are using WiFi, try plugging directly into the router. If that isn’t possible, try to improve your signal by moving closer to the router. Also, make sure that other people you share the internet connection with aren’t streaming videos or doing other high bandwidth activities.
If you're still having issues, try restarting your computer and make sure that you don't have other heavy applications running while you are streaming.
In rare cases, an old router might be causing issues -- if you are hardwired and continue to have issues, try restarting or replacing the router. Before replacing the router, you should contact your ISP and ask them if there are any issues in your area.