Google announced they have now speed up the Google +1 button for websites.
The button is now automatically up to 3 times faster and best of all, webmasters do not need to update their code for the speed changes to take affect. The change is automatic. Google said, “no action is required on your part, so just sit back, relax, and watch as the button loads more quickly than before.”
Is 3X faster not enough? Google has also released a new asynchronous snippet that is even faster. This feature allows your web site to continue loading while your browser downloads the +1 JavaScript.
To see the official announcement of Google click here