I have wifi 6, it took quite a bit of fiddling before I got the good results I wanted. But a good first thing to check is that your network adapter had 802.11

I have wifi 6, it took quite a bit of fiddling before I got the good results I wanted. But a good first thing to check is that your network adapter had 802.11 AX enabled (on Windows, my experience is it is not enabled by default.)