In delay-based netcode, the game assigns a default amount of input delay to ensure stuttering is kept to a minimum. Ultimate in particular is extremely conservative on this to accommodate unstable connections, averaging around 4-6 frames for a perfect connection and adding additional frames based on ping (up to a technical max of 25)
The online input delay can now be set manually, from 1 to 25 frames
This is equivalent to Dolphin’s buffer setting in allowing stable connections to achieve a lower latency, marking a massive improvement especially for connections within the same region
This is a client-side adjustment. Setting the value too low will result in stuttering, but both players may set any value equal to or higher than what is found playable with no downside
Choose the default “Auto” option to use whatever the game would normally assign you. After playing a match, said assigned delay will be displayed in parenthesis
Extra Modes may also be toggled in online arenas by pressing Dpad down while waiting for a match
Note that all players must have the exact same combination of modes selected or the match will immediately desync
Readjustable Latency Control (RLC)