Minecraft Delay

My minecraft realm has been lagging and very delayed when I walk, mine, or eat. It also has been kicking me and not saving every now and then. It wasn't like this before the bug fixes and bee update. I'm not really sure what to do, I restarted my pc after it finished updating the bee and bug fixes but it hasn't really improved. my two other friends says they've been having the same issue on my realm too. Please help, it's been very annoying