Possible Performance Improvement

I’m using this plugin but it doesn’t solve all my problems.

I my case, i had to add this code

    add_action('schedule_event', array($this, 'filter_cron_events'));

    function filter_cron_events($event) {

        $ignore = array(
            'wp_version_check',
            'wp_update_plugins',
            'wp_update_themes',
            'wp_maybe_auto_update',
        );

        if ( in_array($event->hook, $ignore) ){
            return false;
        }
        return $event;
    }

to avoid adding the events to the cron, in the database.

The wp_clear_scheduled_hook just delete the events, but with my code i don’t need to delete the events, because they aren’t added to the cron. With this i reduce 8 queries for each request.
Updates in wp_options / cron are heavy.