AJAX expert needed to optimise existing code

I have a small web system written using AJAX. However, its performance is very poor and it operates very slowly. I need an expert AJAX programmer who can analyse this existing system and identify how we can make the code more efficient to speed up the front-end operation. After identifying where changes can be made you will then be asked to carry our the changes. I want someone who has a lot of experience with AJAX. Do not apply if you are not an AJAX guru!