Wifi speeds either fast or slow with each reboot

I’ve recently started to try linux and have installed it a couple of days ago using Ubuntu 20.04 and have it as updated as possible.

My wifi chip is the Intel AX200 which I have seen to be causing others some issue as well, however mine is rather odd. My wifi speed can either be as fast as it can be (37mb/s) or be only 2mb/s. However this seems to change with each boot up or turning off and on of my wifi. It’s usually slow with a speed of 2mb/s but is occasionally the same as it is on windows at 37mb/s. I’ve tired using different commands to see what’s happening such as:

iwconfig

sudo iwlist wlp6s0 scan | grep Frequency | sort | uniq -c | sort -n

as from other similar posts. With my limited knowledge all I could really do is compare the results of each speed to see what had changed, with the main one being iwconfig having an invalid misc: 33 and bit rate=866.7 at 2mb/s where as invalid misc: 24 and bit rate=234 at 37mb/s.

I’m guessing that it’s more to do with my router as the channel frequencies change when this happens with the command sudo iwlist wlp6s0 scan | grep Frequency | sort | uniq -c | sort -n. My knowledge of both Linux and wifi stuff is very limited so any help or even the dumbest things maybe of help. I will also be happy to find anything out if needed.

EDIT: After further quick testing, it seems changing the 5G channel helps this, specifically going through the avalible channels until you get a good result. This isn’t fixed so say channel 38 may work for a bit but soon might have to change over to 44 etc.