FS with 400 players online, works fine. Double exp event, 600 players online, game can't handle it. I'm not hating, but you really got to step it up a bit, cause a game that can't even handle a grain bit more activity, i dont know what to think about that. I would love to think that the goal is to attract new players and to expand, but how do you want to do that if the max we can handle is 400 online players at a time. I just came back to this game after a few years, I dont know whether there were other events before this one, but 3-4 years ago i remember every event lagging as hell too, but the game could definitely handle more than 600 people. Just sharing my thought.
Btw the lag has decreased, good job but i hope you didnt just cut off the arena to make the lag go away, cause arena doesnt start anymore.