I bought Minecraft Realms about a week ago, and have been playing on a survival world with my friends since. But when I logged onto our Realms server the other day, the game would play with about 60-70 fps (normal for me), but then would freeze and give me none for a few seconds, and then go back to normal, and then freeze again, and repeat. This has happened to everyone on the server and is still happening. It doesn't happen on any other SP worlds/servers, and also works fine when the server is switched to mini games. But it's all over the world, so it cant be something like too many entities. Please help.

P.S. Don't have anything to record with to show