How do I enable the exclusive full screen mode?
The game runs in full screen windowed mode otherwise, which is a waste of resources.
It's available as a launch option in the Steam-version of the game but it seems like it's not available in the GOG-version of the game.

Found a solution.

Launch the game through a shortcut that forces exclusive fullscreen. For example: "C:\GOG\Yooka-Laylee\YookaLaylee64.exe -window-mode exclusive".

Hi,

I can just talk for my PC, but here the game runs much more smoothly with the borderless window mode. Using the fullscreen command, I observe much more stuttering (both with Vsync on).

Best regards,
Raff