Incorrect Time on Blog Page

I have the estimated reading time set up at the beginning of each post and before my ‘More’ tag. When you view the post on the blog page and get the teaser, the reading time is displaying as ‘less than a minute’. Then which you click in to the post and view it, it changes to the actual reading time. Are you aware of this? Thanks, Paul

https://www.ads-software.com/plugins/estimated-post-reading-time/