Дмитрий

$(".twentytwenty-container").each(function() {
    var $this = $(this);

    clearTimeout(timer);
    var timer = setTimeout(function() {
        $this.twentytwenty({
            default_offset_pct: 0.5,
            no_overlay: true, 
            move_slider_on_hover: true, 
            move_with_handle_only: false, 
            click_to_move: false
        });
    }, 200);
})

var i = 0;
$(".twentytwenty-container").each(function () {
  setTimeout(function () {
    $(this).twentytwenty({
      default_offset_pct: 0.5,
      no_overlay: true, 
      move_slider_on_hover: true, 
      move_with_handle_only: false, 
      click_to_move: false
    });
  }, i * 200);

  i++;
});

var manager = new THREE.LoadingManager();
manager.onLoad = function () {

	console.log( 'test all loaded' );

};