Netgear A6100 keep disconecting while playing games

Hi guys. 

I have some issues with A6100 adapter. First of all i just bought myself a new PC for gaming, obviusly I made a mistake since I didnt check the options I had for network which led to that my PC arrived with no Wi-Fi card. Im renting a apartment where my landlord lives above me so I have no acsess to Ethernet connection. As far as I know the router is placed almost above my PC so it basicly the floor that is keeping it apart, I dont know anything about the router all I know is that its a 100/100 fiber-line with extra Wi-Fi range which means I can have internet even outside the house. However I have pretty bad connection using the A6100 adapter, with my old PC i used to have for example between 10-20MB/s download speed (Wi-Fi connection) while now i barely reach 3MB/s of course a integrated card does a better job but I didnt thought it would be so weak with the A6100 but there is a bigger issue aswell which is that I keep getting disconected from the internet while i play games, it usualy happens from 1 to 5 minutes after I start a game to be more specific I play Ghost Recon: Breakpoint but it also happens with other games and even when I was watching Netflix on my PC aswell  allthough it came back quite fast and it was just a one time issue but when you are playing its quite frustrating. So I wonder if someone here might have a solution to my problem I have tried to reinstall the drivers, (standalone and the other one) checked for Windows update, switched USB ports, disabled the USB selective suspend option aswell. Hopefully someone might help me with that around here.