Reduce loading time of social button script

Hi all,

I'm using social buttons in my blog frontpage but I have an issue with them. The loading time to load those button are too long and they also break my blog layout when they are loading:
http://screencast.com/t/lU6YBZWKy
Is there any way to make theme fixed in their position in the time they load?

Thanks,
Giang Anh