posts table full of junk

While this plugin is running it runs a Select query every few seconds, then writes 2 rows into the posts table.

After months of not noticing my website was slowed to a crawl, I now see that I have more than a million entries made by this plugin to the posts table.

I deactivated it, and now no new junk entries are being inserted, and the SELECT that was running every few seconds stopped too.

My server performance has improved so much now, it’s unbelievable.

Can this plugin be a fake? I think there’s a chance it’s not written by Klaviyo since everything is still working after I deactivated it.