Addthis have an ajaxy JS snippet you can use. Might help a bit. Similarly, check for similar versions of any other widgets you have. Other than that maybe cut d

Addthis have an ajaxy JS snippet you can use. Might help a bit. Similarly, check for similar versions of any other widgets you have. Other than that maybe cut down the number of posts on the home page. You could always self-host the blog on a fast server and store as many scripts locally as possible.