Wp rocket makes my database too big, it’s now 5 GB [closed]

I noticed now the WP Rocket plugin makes my database too big. My database is now 5 GB! And in the wp_options table, it created 1 million rows, all of them starting with rocket-.... I contacted the plugin support team, and they told me: disable WP Cron, open the wp-config.php file in your main WordPress folder and add the following line before the /* That's all, stop editing! Happy blogging. */ line:

define('DISABLE_WP_CRON', true);

Then: Add a cron job entry through your web hosting control panel. You can set the job to run every 5 or 10 minutes. Please remember to replace yourdomain.com with your actual domain:

wget -q -O - http://yourdomain.com/wp-cron.php?doing_wp_cron >/dev/null 2>&1

After I doing all of this job, any thing not change, and my DB is still 5 GB.

And the support team doesn’t answer my questions.