I was alluding to the difficulties of frame-rate conversion, dithering, and compression artifacts in the original source being amplified by the conversion. Grayscale by itself isn’t the issue.
But the person you replied to "it only has two colors (black/white, 1/0)" which is what I was referring
But the person you replied to "it only has two colors (black/white, 1/0)" which is what I was referring