Hey there! The stick sensitivity options will work for the virtual cursor as well, so you can adjust it that a small nudge will move the virtual cursor much farther, or that a large nudge will not move it very far if you need slower movement for precision. You can use the StickSensitivityAdjustment class as a bar value as demonstrated in the included preferences example screen.
For the TypeError, I'll direct you to https://itch.io/post/13055124 - specifically that you can remove the _game_menu_screen = "game_menu" stuff or adjust your game_menu screen.