Normally the forum software should recognize that you are on a mobile device and change your view automatically. If it does not, please let us know what your phone is so we can look into fixing this.
If your mobile device is not automatically detected, browse to
https://permies.com/forums/mobile on your mobile device - it will hopefully be much nicer for you, and it should remember that you asked for a mobile page, so the "mobile" section of the URL will no longer be needed. (If you go to this page by accident on your main computer, there should be a link at the bottom of the page that will take you back to a non-mobile site.)