Articles coming live late

These are my settings:

– Yes, I want to run my Pipes in both manually and automatically methods.
– No, I will create a cronjob task myself to run the script
– Yes, I want the cronjob will be executed getting data directly from the source, not from Cache.

Run every 5 minutes

However the articles are coming live after 2-3 hours
Why?

https://wordpress.org/plugins/wp-pipes/