Please consider addressing the following issues which Google highlights when you run their tool over the control panel...http://developers.google.com/speed/pagespeed/insights/https://developers.google.com/speed/pagespeed/module
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 109.6KiB (67% reduction).
Compressing /system/res.common.js?b=20131107.276 could save 104.1KiB (67% reduction).
Compressing /theme/res.common.css?b=20131107.276 could save 4.8KiB (74% reduction).
Compressing /theme/login.css could save 672B (55% reduction).
Your page has 2 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
/system/images/icons/password.png (24 hours)
/system/images/white.png (24 hours)
/…uery.centova.password.css?b=20131107.276 (24 hours)
/…query.centova.password.js?b=20131107.276 (24 hours)
/system/res.common.js?b=20131107.276 (24 hours)
/theme/images/iconpane-sep.png (24 hours)
/theme/images/login-bg.png (24 hours)
/theme/images/login-logo.png (24 hours)
/theme/images/tooltips/tipbgsprites.png (24 hours)
/…me/images/tooltips/tipcalloutsprites.png (24 hours)
/…theme/images/tooltips/tipiconsprites.png (24 hours)
/theme/images/tooltips/tipsprites.png (24 hours)
/theme/login.css (24 hours)
/theme/res.common.css?b=20131107.276 (24 hours)
Reduce server response time
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 2.7KiB (19% reduction).
Losslessly compressing /theme/images/login-bg.png could save 1.7KiB (32% reduction).
Losslessly compressing /theme/images/login-logo.png could save 1,023B (11% reduction).
Minifying /system/res.common.js?b=20131107.276 could save 1.7KiB (2% reduction).