Our server had 4 people on, it was also a blood moon even that spawns more mobs at night.
The blood moon always dropped the tps a bit but this time it plummeted, lag goggles revealed something odd about your mod, see pic below.
72ms used per tick.
Laggoggles doesnt go too deep into code calls, so it just notices that top level method of yours taking up lots of time.
93 spiders were spawned too, worth noting but not sure if matters.
Strange I can't quite see anything in your code that could cause so much of an issue, but I figure'd id mention it.
Our server had 4 people on, it was also a blood moon even that spawns more mobs at night.
The blood moon always dropped the tps a bit but this time it plummeted, lag goggles revealed something odd about your mod, see pic below.
72ms used per tick.
Laggoggles doesnt go too deep into code calls, so it just notices that top level method of yours taking up lots of time.
93 spiders were spawned too, worth noting but not sure if matters.
Strange I can't quite see anything in your code that could cause so much of an issue, but I figure'd id mention it.