I have got a ping tracker runnning in the background. No matter, what I am doing or playing, I have got a ping of around 14-40ms. But as soon as I start Overwatch the ping for my whole machine goes up to 200-600ms.
I just want to give you that report. Please spare your “helpful” advises. It’s not the machine, it’s not the configuration, it’s not the ISP, it’s not the router, it’s not the cable, it’s not the software, it’s not the route to your game servers.