Hi,

Since the comments come from external source (Facebook, Disqus) we've decided to load the comments form only when users click on the comments tab. The idea is to prevent unnecesery data requests because not all users want to view the comments section. Perhaps we could add some text for example "Comments will be displayed shortly" or something like that. 

In your theme functions.php file at the bottom add:

add_filter('stec_event_tabs', function($tabs) {
    foreach ($tabs as $k => $tab) {
        if ($tab[0] === 'comments') {
            $tabs[$k] = array("comments", __('Comments', 'stec'), "fas fa-comments", '<p class="stec-layout-event-text-fontandcolor">' . __('Comments will be displayed shortly', 'stec') . '</p>', false);
        }
    }
    return $tabs;
});
add_action('stec_after_html', function() {
    ?>
    <script type="text/javascript">
        (function ($) {
            $.stecExtend(function (m, data) {
                var interval = null;
                m.$instance.on(m.helper.clickHandle(), 'li[data-tab="stec-layout-event-inner-comments"]', function () {
                    clearInterval(interval);
                    interval = setInterval(function () {
                        var cLength = Math.max(0, m.$instance.find('.stec-layout-event-inner-comments')
                                .find('.stec-fb-comments, #disqus_thread').length);
                        if (cLength > 0) {
                            clearInterval(interval);
                            m.$instance.find('.stec-layout-event-inner-comments > p').remove();
                        }
                    }, 1000);
                });
            });
        })(jQuery);
    </script>
    <?php
});

We'll tweak this in future update.