SmartByte, limits speed

If anyone has really fast internet and when you do a speed test you only get 100 Mbps, check to see if Dell has slipped the SmartByte application on to your PC. I have a 400 Mbps connection and 802.11AC wifi and my Inspiron PC would only get 100 Mbps at my ISP's official speedtest site.  i went through 3 different AC cards thinking it was them because my Ipad would always give me a speed of 400Mbps. Just by happenstance I uninstalled the SmartByte app, and lo and behold my speed now gives me 400+ Mbps. Here's the kicker, a day later the dang application was back and i was getting 100 Mbps again.  I didn't install it, it installed itself!  Every time i would uninstall it, a day later it would be back...ugh!  I do not know how to keep it from self installing so what I did was go to the "Services" tab of Windows 10's task Manager and stopped the service "SmartByte Network services"  after doing this i have my full speed back again, and the app doesn't "restart" itself.