How to show product in ajax search only once?

Hello,

I had purchased your great module called VM axaj search. I am facing the issues with slow loading during the searching.
It is caused because i have a lot of products and some produts are in the more than one category.
It means the ajax search show the same product in more categories.
Is it somehow possible edit code in the way that ajax search will be shown the product only once?

Thank you for help & response.

Hi,
Can you send the information of your site (Website link, backend account and ftp information) to my email : damdt@joomservices.com. I will implement the optimize for you.
Thanks
Dam