I have a skyblock server, so server has many worlds. In average 50-60 players and 30-40 loaded worlds, my server's TPS is around 10-12. Today, I saw that someone joined the server and it was the 150.000th entity. This is terrible! And I think a large part of those entities are ItemEntity. I clear the ItemEntities every 2 minutes. I have an 16GB ram and 4 ghz 2 cores. I search this in the forum but I don't find anything. I don't know what to do. Help me (Sorry for my bad English.)