Realm lag

Have you tried restarting your network connection? Obvious questions of course but sometimes it might also be the network your running on if multiple devices are running and other persons in your household could be watching videos or playing other online games that can hurt your game performance. 

Another solution could be turning down some of your settings in your pause menu. I'm currently running Minecraft Java on a computer I got back in 2015 and I have to turn down a lot of settings and also the render distance so my game is playable.

I hope this helps.

Yes, I have done all that, but it continues to be very lag since the new version 1.16, the realm is are soo lag and unplayable.

I have no idea what could be more maybe is a programming problems or i don't now what!

One recommendation I'd want to put out there is trying to download your world off of the realm server and load it as a regular single-player world (if it is still lagging some setting in your Minecraft menu might still be affecting your performance). See if you still have the same issue with your world if not then you could try resetting your realm server with a brand new never played on world to see if your world is the issue.

It might just be that since the 1.16 update there is always new issues rising in new bugs that Mojang will find and fix.

do not believe I tried that too, I created a new world and keep going lag, in single player it is perfect, I think it is something of the update ;(   because before 1.16 came out the realm was perfect!

Thank you for your report!
We're actually already tracking this issue at REALMS-4642, so I will resolve and link this ticket as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

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