Scheduled Actions slowing down site is there a wp-cli guide?

What I notice is that our site runs really slow at our woocommerce checkout – I think this is because Scheduled Actions pile up or need to process. I did notice if say Scheduled Actions pile up say 20K jobs, that it can take over an hour for the queue to get processed.

Is there a wp-cli guide for noobs? So far I have WP-CLI installed.

In cpanel I added “wget -q -O – https://mysite.com/wp-cron.php?doing_wp_cron >/dev/null 2>&1” as a cron job every 5 min.

I also have define(‘DISABLE_WP_CRON’, true);

How can I setup action scehduler to run a lot of these jobs via WP-CLI? I don’t know what to use for the command lines