Select2 takes a long time to load

When I use select2 in rails and reload this entry appears for 1 second

Then it goes back to normal like the following picture:

This is my code and I have tried placing it in css display hidden and visibility true without any success

javascript:
  $("#js-customer").select2({
    maximumSelectionLength: 15,
    minimumInputLength: 1,
    tags: true,
    tokenSeparators: [',', ' '],
    
    language: {
      maximumSelected: function (e) {
        return I18n.t('customers.limit_max');
      },

      inputTooShort: function (e) {
        return I18n.t('customers.limit_min');
      },

      noResults: function(){
        return I18n.t('customers.not_result_found');
      }
    },
  });

and this is my input tags:

= f.input :tag_ids, collection: Tag.all, input_html: { class: "js-example-basic-multiple js-example-responsive", multiple: true, id: "js-customer"}, include_blank: false

I would greatly appreciate help on this issue.

I solved it by removing the css styles and the multiple:true from the tag_ids input

= f.input :tag_ids, collection: Tag.all, input_html: { id: "js-customer"}, include_blank: false

with this it no longer reloads slowly or creates duplicity in the collection