Slow Database Queries

I’m having a lot of issues with this plugin and causing slow queries in my database. I’m running a multisite network and using this network activated. The slow queries are below:

SELECT ID 
FROM wp_42_posts 
WHERE post_type = 'attachment' 
AND post_mime_type LIKE 'audio%' 
LIMIT 1 /* From [www.MySite.com/wp-admin/] in [/wp-content/plugins/shortcode-ui/inc/class-shortcode-ui.php:235] */	
+
wp_enqueue_media
0.2589
SELECT ID 
FROM wp_42_posts 
WHERE post_type = 'attachment' 
AND post_mime_type LIKE 'video%' 
LIMIT 1 /* From [www.MySite.com/wp-admin/] in [/wp-content/plugins/shortcode-ui/inc/class-shortcode-ui.php:235] */	
+
wp_enqueue_media
0.2431
SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month 
FROM wp_42_posts 
WHERE post_type = 'attachment' 
ORDER BY post_date DESC /* From [www.MySite.com/wp-admin/] in [/wp-content/plugins/shortcode-ui/inc/class-shortcode-ui.php:235] */	
+
wp_enqueue_media
0.1777

Additionally, I receiving an error on a broken dependency on the main master site:

Broken Dependencies		

shortcode-ui
https://www.MySite.com/wp-content/plugins/shortcode-ui/shortcode-ui.js	
backbone
jquery
mce-view
shortcode-ui-js-hooks (missing)
1.0.3

Any help would be great because my site is CRAWLING because of these errors. Thanks!