I’ve been making this game and I’m trying to be as realistic as possible as real-life. When it’s night, it lags way more, around 30-40 fps, and in day 60+ fps. When it is night, there’re a bunch of street lights and buildings that light up, which may be the problem. This is what it looks like when it is night:
I think the lights are the problem, so try making a rendering thing like minecraft. If they are close enough it’ll turn on, if not it’s off
Edit:
For this to work, you should probably limit the amount of players to be low.
You can make a “Chunk” renderer, so that it just renders certain things, not the whole game.