My realm has 50ish villagers and they out of nowhere created so much lag that it would take 10 seconds to do a simple action like eating or opening inventory. I tried to kill them all but when I logged out and logged back in all of the villagers I had respawned like nothing happened. I broke all the job blocks and beds but they still respawned after I left. This is my first post so I'm sorry if I got some info wrong. This is the current version of Minecraft Bedrock edition and the lag was for all of my friends who are on Xbox, pc, and mobile.