Event Manager Shortcode Performance Issues

I’m attempting to make calls to the events array to grab only the events with a certain style (Display on front page) checked. I’m using the suggested EM shortcodes. This code is used on a separate page from the events page.

Here’s a sampling of the code that I have right now:

$eImg = do_shortcode("[events_list style=1 scope='future'] #_EVENTIMAGEURL[/events_list]");
$eMonth = do_shortcode("[events_list style=1 scope='future']#_{M}[/events_list]");

<img src="<?php echo $eImg ?>" />
<div class="eventMonth"><?php echo $eMonth ?></div>

This works. However, the site is so slow with this code in place. If I comment out the code it speeds the site right back up.

Is there a better/more efficient way to make these calls than the EM shortcodes?

Thanks in advance for any advice you’re able to give.

http://wordpress.org/extend/plugins/events-manager/