I was under the impression that Arcsys always used GGPO style netcode?
Which would mean instead of waiting 5 frames for the opponents inputs before advancing the game state it instead uses the best guess at what those inputs might be and moves ahead regardless. Then it rolls back and corrects before returning to the current frame if it detects that the actual inputs were different from the predicted inputs.
Under this system there should be the appearance of very little or no input delay at all. (There actually is a delay you just don't see it). Which is why it's so weird that Xrd has noticable input delays. Is it not using GGPO? Are latencies just that high right now?
