Leader Board module and page slow down website

Hello. We noticed that "Leader Board module" and "Leader Board page" is very slow.

1) check page speed https://strana-krovi.com/community without Leader Board module (about 2 sec total)
2) publish in backend Leader Board module (it's allready created) in position es-dashboard-aside
Result: Page https://strana-krovi.com/community start to load a lot of seconds

3) check Leader Board page https://strana-krovi.com/leader
It loads very long time. Yes, it have a customization (to display active users for 30 latest days) in file
/components/com_easysocial/views/leaderboard/view.html.php
But if use original file, result is not better.

Thanks.


Also clients report there – there is a small error in file
/modules/mod_easysocial_leaderboard/tmpl/default.php

<div class=es-leader-context__info>

						<?php echo $lib->html('html.user', $user);?>

						<div class="mod-es-leader__points"><?php echo JText::sprintf('MOD_EASYSOCIAL_LEADERBOARD_USER_POINTS', $user->getPoints());?></div>

					</div>

<div class=es-leader-context__info> no quotation marks for the class