[Win/Libretro] Full Framebuffer Emulation adds 1 to 2 frames of input lag

[Immersion95]

Full Framebuffer Emulation adds 1 to 2 frames of input lag depending of the setup :

Example : Ryu's jab in CVS2

With Full Framebuffer Emulation OFF :

• 2 frames without Delay Frame Swapping
• 3 frames with Delay Frame Swapping (accurate behavior)

With Full Framebuffer Emulation ON :

• 4 frames without Delay Frame Swapping - It should be 2 frames
• 4 frames with Delay Frame Swapping - Should be 3 frames as real Dreamcast hardware

Full Framebuffer Emulation is a great way to have a faithful visual representation of the Dreamcast (only way to have dithering at the moment).