There are two ways to open settings.

Method 1

Up in your toolbar near the wifi symbol, there should be a Superwhisper Logo.

When you click on it, a list of options should appear.

Go down to settings and click to open. Just like that, settings should be open!

Method 2

When you have the SuperWhisper dictation window open, click on the window and press the ⌘ and , keys to open settings.

This should then open the settings window!

Hope this helped and have a great day!