d3wp

This plugin shows Google PageSpeed scores for the themes installed from the official WordPress theme repository. 
With this you can easily determine which themes are fast and which ones can slow down your WordPress blog when used.
Plugin shows 2 scores (see screenshot):
<ul>
<li>Google PageSpeed score for blogs’ Home page</li>
<li>Google PageSpeed score for blogs’ sample Post page</li>
</ul>
More than 2600 themes were tested lately.
Every theme was tested on a fresh WordPress installed instance populated with a sample content. 
No additional plugins were installed to avoid any unwanted impact on the speed test.
NOTE: 
This plugin calls <a href="http://www.wpspeedster.com" rel="nofollow ugc">wpspeedster.com</a> API to obtain necessary information about PageSpeed scores. 
Only theme slugs are send to the API, no additional or personal information is send.

Themes Speed Test

This plugin shows Google PageSpeed scores for the themes installed from the official Wordpress theme repository.

SalvatoreDP

WordPress Veloce is a wordpress plugin that optimizes your wordpress website improving page loading speed.
Just 1 click setup and wordpress is optimized with the various best practices to get a higher score on the speed testing services. Increase of page load speed gives you a better performance for loading the website. WordPress Veloce works with all the themes as its not affecting any theme or plugin code. It can be used in combination with other Cache plugin without problems.
Increase your WordPress page load speed to get a higher score on the speed testing services like Google PageSpeed Insights, Gtmetrix, Pingdom etc.

WordPress Veloce

Testato senza problemi

WordPress Veloce increases WordPress page load speed to get a higher score on the speed testing services like Google PageSpeed Insights, Gtmetrix, Pin …

Themes Speed Test vs WordPress Veloce