Timeout problem, maybe??

I seem to be experiencing a timeout problem in the related posts. Check out our last exchange here: https://ww.wp.xz.cn/support/topic/show-percentagenumber-of-related-terms-in-common?replies=40
as the plugin was customized to my site, if you’ll remember.

I’m frequently seeing related posts that are maybe 30% related (and newly published), when I know there’s an older post that’s 100% related. I tested my theory by publishing a new test post with tags that matched a separate post 100%. It worked and showed the related post in the widget, followed by a 100% match. It wasn’t until I changed the published post date to last year that the match completely disappeared from the related post.

How can we fix this issue? I want your plugin to consider ALL posts, no matter how old they are and to search for a 100% match no matter what.

https://ww.wp.xz.cn/plugins/related-posts-by-taxonomy/