Most servers that run XoneXfer are unlagged, although this can be turned off if desired (see config readme).
Through the various game settings, many aspects of the game can be customized to provide a unique game experience, or configured to replicate several of the more well known mods, such as InstaUnlagged or OSP.
XoneXfer has been retired.
You can download the last stable release (1.3RC8) here:
DOWNLOAD XoneXfer 1.3RC8