Add option ajax.delay into Select2 select_advanced & taxonomy

Hi, how do i add this option into metabox Select2 select_advanced & taxonomy ?

i tried to add in code php but no luck :

                'required' => true,
                'columns'     => 4,
                'ajax'       => true,
                'ajax.delay' => 5000,
                    'query_args' => [
                        'number' => 80,  // 1 per page
                    ],
                   'js_options' => [
                        'minimumInputLength' => 2,
                    ], 

$('#mySelect2').select2({
  ajax: {
    delay: 250 // wait 250 milliseconds before triggering the request
  }
});