The Castelia lights arent playing fair =/ In the end they may be removed to save the server from a lag storm but for now they stay.
They were working fine before...
They will always be a bit sketchy at turning on and off at the right time but that's because they rely on people being in the area, which is a Minecraft chunk thing.
Also, from what I understand, they don't really cause much lag. Only 6 lines in console at each interval (and only if someone is even in the city) and they've never lagged me out at that point and my internet is terrible. What do you mean by not playing fair?