Hi There, I am currently working with a site that has been using wppa+ from the beginning (http://pgjudo.ca), but recently started having problems with a 60 second delay in loading every page on the site whenever the wppa+ plugin is enabled. When it's enabled there is a consistent 60 second delay on all pages. Once the plugin is deactivated and any page on the site has been reloaded, the delay disappears. What's also interesting is that once the plugin is Activated again, the browser on which the page was "reloaded" is still quick, but any new browser instance on any other computer still sees the delay.
I have read through your post at http://wordpress.org/support/topic/plugin-wp-photo-album-plus-slows-down-the-site-extremely and I have turned on debugging and tried the ?debug. The ?debug doesn't seem to produce any extra output, but enabling debugging prouduced two warnings "Notice: Undefined index: page in C:\inetpub\wwwroot\pgjudo.ca\wp-content\plugins\wp-phpmyadmin\wp-phpmyadmin.php on line 46" and "Notice: Undefined index: name in C:\inetpub\wwwroot\pgjudo.ca\wp-includes\capabilities.php on line 113" which are produced whether wppa+ is enabled or not. On googling the errors I found http://core.trac.wordpress.org/ticket/18461 in which you seem to address a similar issue, so I was wondering if that was related since your post was well after my initial install of wppa+.