10.0.10 - Faster user notification emails


I have been searching around and have not found an answer to what I am trying to do. I currently have a cron job running every 5 min and the default email notifications are still being sent every hour. But I need these activity notifications to happen ideally at 5 min intervals.

I even have the oc_appconfig - notify_setting_batchtime set to 300 for the few users I am testing. What other settings can I change to get these emails sent every 5 min?

My server is Ubuntu 18.04
OC - 10.0.10
MySql - 5.7.24