I have installed the latest drivers for my network adapter.
I have rollbacked my wireless network adapter’s drivers to an earlier version.
I have tried several things in order to overcome the issue but unfortunately all failed, or maybe helped a bit, but not to an extend that solved the problem. This article, assumes that your hardware works properly. Note that each case might be different, and there is always the possibility where you might have a faulty hardware component, in this case, a faulty wireless network card or router. The good thing is that I don’t have the issue anymore and I would like to share with what solved the problem in my case. So, you have a slow WiFi internet connection on your Windows 10 laptop! Guess what? I had exactly the same issue!