Now We are developing a Hybrid App and here data is accessing from Server side and given data is in JSON format. Its takes more than 10 seconds to load the data from server.

Here is its sample code :

```
$(document).ready(function(){
    $("#cardetails").tap(function(event,ui){   

      $.ajax({       
          url:'http://wwwsampleurl.net/json/jsn_cmp.php?json=1&rcg_mobile=2&lan=en&callback=ajax_eup&pick_up_loc=AGPT01&drop_off_loc=AGPT01&country_des=ES&country_user=AE&currency=EUR&day_drop=Tue&day_pick=Tue&age_driver=30&uid=0&num_days=7&pick_up=2722&drop_off=2722&pick_up_day=13&pick_up_hour=10&pick_up_minute=00&pick_up_mon=08&pick_up_year=2013&drop_off_day=20&drop_off_hour=10&drop_off_minute=00&drop_off_mon=08&drop_off_year=2013',
          data:'',
          contentType: "application/json; charset=utf-8",
          type: "POST",
          dataType: "json",
          crossDomain:true,
          cache: false,
          async:false,
          success: function(data, textStatus, jqXHR){
              $.each(data, function(index, val) {
                  if(index=='gen'){
                      alert("gen data - "+val.pick_up_day);
                  }
                  else if(index=='company_date'){//alert('Load cars')
                      for (var i = 0, len = val.length; i < len; i++) {

                          //alert(JSON.stringify(val[i]));   
                          //    alert(val[i].car_img);
                          $('#carImages').append('<img src="'+val[i].car_img+'" width="70" height="110" alt="'+val[i].car_group+'" title="'+val[i].type+'"/>');
                       }
                   }

               });

           },
           error: function(XMLHttpRequest, textStatus, errorThrown){alert(textStatus +"-"+ errorThrown);}

        });       
    });

});

```

How we can improve the performance?