[Vanit]

Honestly, I'm not sure at how to fix it since I don't play FFXI. But here's the first thing I would try; see if parties still lag on the lowest settings.

 

[Vanit]

ChankastRules: I've been monitoring the dl and ul rate for most MMORPGs and they only consume a few kb/s even in the messiest of situations. Since they don't have 'real physics' in them like FPS games, all you really need to send between clients are coordinates and statistics. You could play World of Warcraft with 56k no problems, and I would think the same for this.