Drupal 7 Ubercart Calculate Shipping values by using Jquery

Hi,

I am using Drupal 7 with Ubercart module. In checkout page, While entering the zip code, shipping quotes will generate automatically by using the uc_ajax module. But, ajax loading taking too long time to load. Even while changing Fedex to UPS, it is taking too long time. So totally shipping calculation is taking too long time. Is there any way to calculate shipping by using jquery instead of ajax?

Please advice. Thanks in advance.

Drupal version: 


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