Conclusion:

Sonar has a global rank of 2525 and an overall pagespeed score of 74.
Sonar uses 27 resources in total, which is 561 kB of data.

This theme is faster than 2.36% of other themes we have tested.

Description by publisher:

The Sonar theme is a stylish, neat, and fully customizable WordPress theme. Make it yours with the easy customizable theme options with a simple check-box interface to easily change colors, fonts, header, background, menus, sidebars, and much more. Uses Superfish menu effects and it has built-in pagination for post pages and comments. Sonar has page templates of HTML Sitemap, one-column page template that removes the sidebar, and one-column full width iframe. Special styles for posts in the Asides, Status, and Gallery categories and Sonar has a active support forum.