Why do Chrome & Firefox slowly render my home page using MathJax?

Question

This is my experimental site using MathJax. I browse it using Chrome, Firefox, and IE. I notice that IE renders slowly. But Chrome and Firefox do more slowly. :-)

Is there any secret tip to speed up the rendering?

Edit 1

I am still uploading the MathJax using FileZilla now to the remote server. It needs much time to complete.

Even I use my development machine as a server with MathJax libraries installed, the result is the same as what I did above in remote server.