Newest update Locking up Site Randomly

Hello, I have been having a random issue, every now and then about once a day my entire site will lock up and not load, just sit and spin for about an hour or two. I traced it back to the latest up date of Better WP security. I really like the plugin but the only way I can get my site to load is to go through the FTP and disable the plugin manually.

And suggestions on how to fix this would be great, thanks.

http://www.movidstudios.com is the site but like I said it only happens about once a day randomly.

http://wordpress.org/extend/plugins/better-wp-security/