Hi,
cornerstone needs a long time to load any content. I have increased the wordpress-memory-limit and i have the same problem.
Another Problem is an error in Envira Gallery:
Fatal error: Class ‘Envira_Gallery_Shortcode’ not found in /mnt/web310/b1/58/58691958/htdocs/wp-content/plugins/envira-gallery/envira-gallery.php on line 687
Thanks