Download Attachments strongly increases load of the server. Help to understand. With what it is necessary to begin? On what to pay attention? Because of what loading grows?
That’s quite strange as it’s a really lightweight plugin.
Can you post your plugin settings and describe how you use the plugin? Where (on which pages) download attachments are displayed? Is it used in any posts archive query?
all plug-ins on Wp:
Advanced Most Recent Posts
All In One SEO Pack
Contact Form 7
eShop for WordPress
Google XML Sitemaps
Problem only on one site. On other sites all right.