It won't even enable.
I'll just refer you to here, and suggest you read the top 3 discussions.
http://vanillaforums.org/addon/710/page-speed
general rule of thumb - if the plugin hasn't been updated for 3 years, read the last few discussions related to the plugin.
alternate general rule of thumb - read the discussions related to the plugin even if the plugin is only a day old. and read the readme as well.
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.
Comments
I'll just refer you to here, and suggest you read the top 3 discussions.
http://vanillaforums.org/addon/710/page-speed
general rule of thumb - if the plugin hasn't been updated for 3 years, read the last few discussions related to the plugin.
alternate general rule of thumb - read the discussions related to the plugin even if the plugin is only a day old. and read the readme as well.
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.