steve98: Thanks everyone. I took your advice and changed to high transmit (I previously had this set to medium at the advice of someone else) and set RSSI to minimum to -75dB. The difference is immediately noticeable. Whereas I was getting typical speed test results of around 190Mbps it is now around 400Mbps on newer devices. Happy to stick with existing units now as this is likely as fast as I’ll need for the foreseeable.
Thanks again!!
Glad we could help. :)

