Initialization of 2 datepickers is very slow

I am using Angular-UI datepicker .

I have a template that initializes 2 datepickers.

However, I noticed that it took over 100ms to initialize both on the desktop.
This is worse than using a two year old mobile device.
I have the following declaration (2x):

<input type="text" ng-model="schedule.start" datepicker-popup date-disabled="disabled(date, mode)"/>

      

        
        
        
      

    

However, when I remove the directive datepickerPopup

, it takes less than 100ms.

Is there a trick to improve directive performance datepickerPopup

?