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by elipsitz 486 days ago
Great question!

In the absolute worst case (drawing an object at the very top of the screen, and the LCD output for the next frame started right before the current one finished), buffering adds a 2 frame delay (33 milliseconds). Probably noticeable for some people, but this worst case is uncommon.

Average case I would expect ~0.5 to 1 frame delay, so 8 to 16 milliseconds. Probably not really noticeable.