21:9 for cutscene fix - posted in The Witcher 3 Mod Talk: With WSGF.
'go to the nvidia control panel, go to manage 3D settings, go to program settings, select mass effect andromeda or any other game with the same issue, scroll down to power management mode and change it to prefer maximum performance than click apply, i had the same issue with MEA CD Projekt has released a patch for the PC version of The Witcher 3.
