Minecraft Realms LAG [Please Read]

So, I am having serious lag on Minecraft realms. Not lag like FPS lag. I place a block, it waits 5+ seconds. I punch a villager, it waits 5+ seconds. It stays in the air for 8+ seconds. And so on. It is not my computer, my friends are having it. It doesn't happen on a hosted server.

Thank you 🙂