I have changed it so it shows both the QR Code and the Text alternative if anyone wants to do this as well. Note: You can add your own phrases if you wish.
Edit template dbtech_twofactor_enable replace all with
<form class="block" action="misc.php" method="post" name="vbform">
<h2...
Here is a fix for the QR not showing
in file dbtech/twofactor/includes/GoogleAuthenticator.php find
return 'https://chart.googleapis.com/chart?chs='.$width.'x'.$height.'&chld='.$level.'|0&cht=qr&chl='.$urlencoded.'';
replace with
return...
How do I stop it loading the files for the vBShout on pages I'm not displaying it... I only have it on display on the forum home page but it loads all the files and templates on every page when looking in debug mode.