JQuery-Ajax-Struts2 Validation Plugin- Performance Issue

I am using JQuery-Ajax-Struts2 Validation Plugin for Client side Ajax validation .. i can use the <field-validator type="requied"> type validation in my textfileld.but i m facing problem with <field-validator type="conversion"> type validation. i download the source lib and debug that code. but this code is having some problem with error message. its iterate all the times in some of the IF condition that is not required in some cases. I am Facing Problem that my page is not loaded in Expected time. the problem is if this code is optimize the it will give me some good time to load the page.

Still my issue is not resolve
Please refer the Issue
http://stackoverflow.com/questions/6491442/how-to-validate-a-textfield-for-number-only-in-struts-2

Thanks in Adv