I created a realm today for me and my friends and ever since its been lagging the blocks as we brake them they re appear or take a few seconds to delete. I feel its to do with the amount of entities in the world, for example the drowners keep spawning in water under the floor and building up the amount in such a small space. I've also tried to turn the game mode to peaceful and the mobs aren't de-spawning. its driving me and my friends mad because we are really enjoying this world but cant enjoy it without the lag. we all have the best internet we can get so its not latency that's the issue because its only happing with this world no other game.