God of War Chains of Olympus cinematics flickering with non-buffered rendering

[dejavu]

Merged.

Maybe that is because you upscaled a PSP game that natively runs 480x272 to Full HD resolution? Non-buffer rendering skips some graphic effects like blur motion, bloom, and others, this is why you don't see this "issue".

Is the upscaling related to the "rendering resolution" setting or is it related to playing the game on fullscreen (window size) ?