A key part of the functionality of Oxwall is the cron job setup.
If you install Oxwall from the Softaculous Auto-installer you will be prompted to fill in the settings for the main cron job.
According to the Oxwall Documentation it is recommended to set the cron job to run on every minute but that is not optimal for a shared environment or even on a VPS if you have a lot of users.
An acceptable time to run the cron job is at least on every 10 minutes.
You can set the following command format as your cron job from cPanel > Cron Jobs:
10 * * * * wget -q -O /dev/null http://mywebsite.com/ow_cron/run.php
This way you will comply with the rules of the hosting environment.