1.18.1 Realm Lag Spike

So I just bought my realm with the 7.99/month plan and I loaded it up. It was working alright until I started to lag every 10 seconds. I can't even kill a pig without lagging. I even have a decent computer where I've been able to run Minecraft no problem at 100+ fps. So please fix this problem, it's taking the fun out of the game.