And as soon as the buttons and the scripts are delivered from other servers, you effectively can't speed their delivery up.
Aside from the fact that choosing to use those sorts of resources is optional, those (facebook/google+ buttons and likes, etc) are virtually always asynchronous loads -- they do not hold up the render of the root page whatsoever. So if your target is displaying the recipe in 200ms, but the Facebook button takes 400ms -- guess what, the recipe page will still be shown in entirety in 200ms.
Aside from the fact that choosing to use those sorts of resources is optional, those (facebook/google+ buttons and likes, etc) are virtually always asynchronous loads -- they do not hold up the render of the root page whatsoever. So if your target is displaying the recipe in 200ms, but the Facebook button takes 400ms -- guess what, the recipe page will still be shown in entirety in 200ms.