I'm not sure whether this is Aternos's fault or mine. But I uploaded a world that is >200MB and my current modpack is Pixelmon Generations. In the world there are numerous of pokemons and npcs. The first time I went into the server, complete normal, no lags at all, legit good ping BUT the second time I went back into the server, lags just went NUTS, the npcs walk path got lags just like the pokemon ones.
So like, how do I fix this? It seems like this is a problem that can't be fixed but I'm just asking for some solutions.
[Server thread/WARN] [net.minecraft.server.MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 4220ms behind, skipping 84 tick(s)
^^^
What was it caused by?