Hi @susa38
I think you can test it out to see if it will affect your performance or not. You can create a cloning of your site and then delete the empty rows from the cloning site. You can also use a plugin like Query Monitor to check the performance. Please keep in mind that the performance will vary based on a lot of things, so you will need to get a lot of data.
If you think the performance is much better on the cloning site, then you can delete the empty rows. If not, you can just leave them alone.
Deleting the empty rows shouldn’t affect your posts. But to make sure, you can try it on the cloning site too.
I hope this helps 🙂
