Hello i should probably ask this on GBATemp aswell but wanted to try my luck on here as well. I have a modded DSi running TwilightMenu++ this comes preinstalled with GBARunner2. GBARunner2 has the option to show a border and center the screen as the GBA had a smaller resolution than the DS, but this comes with an "frame of delay" I am now wondering as I always believed that GBARunner2 was no traditional Emulator and ran natively using the same hardware the DS/Lite Slot-2 used if this is actually true. I don't see much difference. Does anybody on here know a thing or two about GBARunner2 and DSi Hardware? Why is not utilising the same logic the DS Lite did?

The option im talking about Enable center and mask under Display Settings.