If you want more control over your network you can get Glasswire or Netbalancer. They allow you to limit, track and block applications from using your data.
I personally use Netbalancer and it really helps out a lot. When I game I just limit all the other applications so I know im save.
Also as for a a USB WiFi adaptor, I just like it because I can use it on other devices. But the internal WiFi cards are stronger and more stable.




