This'll almost certainly get a lot of hate, but here it goes. Delete Regalia, and create several new factions worlds. In the spawn for each world, make a roleplay city, not the size of regalia, but a city per world that's considered a peaceful territory. Having multiple cities would lessen the amount of lag per world. Treat said cities like Regalia is treated now, with rentable houses, market stalls, etc. Make faction-based lore a bit more strict (or Regalian lore a bit less strict) to allow facs to become cross-canon, possibly making them intertwine. Maybe allow pvp events in the cities during certain times (maybe once a month or so), allowing some factions to ally & defend or enemy & attack the cities. This would create natural conflict between the facs.