WP-Cron is how WordPress handles scheduling time-based tasks in WordPress. It works by checking, on every page load, a list of scheduled tasks and run them if it is necessary.
If you have many pageviews it can generate a huge load on your server. Swift Performance provides multiple features to manage WP Cron.
Limit WP Cron
Prevent WP Cron being called on every page load. 100% means unlimited, 0% means WP Cron is fully disabled.
Enable Remote Cron
May you want to disable WP Cron by adding the following line to wp-config.php:
In that case cronjobs will not run at all, except if you trigger it somehow. Swift Performance API provides remote cron service, which will trigger cronjobs horly, twice daily or daily basis.