I'm testing this plugin and I'm impressed, it's excellent!
I have two questions though,
I don't know if it's just me but I when I access my site for the first time, right after I activate this plugin I notice the site takes many seconds to load (more than it should, say, around 9s). That just happens the first time after I activate the plugin, is this normal?
2. I see the sitemap is generated with some text at the top linking to Yoast,
"Generated by Yoast's WordPress SEO plugin, this is an XML Sitemap, meant for consumption by search engines."
Can this be removed? does it affect SEO in any way?
Keep up the good work guys!