First go to Advanced
Now select WLAN and Advanced 5G Network Settings
Change Regulatory Domain to Canada. It will give you a message that the change will take effect on reboot. Reboot your router.
Upon reboot you will have the TX Power option unlocked and it will default to 100%. Changing it...
Only works up to High, doesn't stream Hifi. The account made using this method works to stream on https://listen.tidal.com on your browser on PC. If you try to click the button to change the streaming quality the whole page will just blank out so do that on your phone instead before you log in...