vorpX is only active while it is running. In Skyrim however the camera FOV is changed by vorpX, Skyrim then writes the changed FOV into savegames.
If you want to go back to monitor gaming, you can either load an older savegame from before you started to play with vorpX or manually change the FOV back to a value suited for your monitor:
1. While in the game open the console with the ‘~’ key (the one below ESC).
2. Type ‘fov 75 75’ (withiut the quotes) into the console and submit with the ENTER key
3. Close the console
4. Save the game