I have cURL installed and running fine on my server, and yet, I am experiencing the same problem. Whenever the plugin is enabled, the site loads unbearably slow, if it loads at all. It took twenty minutes to load the Admin panel and get to the plugin page just so I could deactivate the plugin. I really like all this plugin can do, but not at the expense of my website loading properly. Any other ideas as to why this would be doing this?