Update group bounding when object modified

[i-prikot]

How resource intensive is it to use this approach to calculate the group boundary?
https://jsfiddle.net/i_prikot/d20bfz38/

fabric.Group.prototype.updateBounding = function () {
  const position = { left: this.left, top: this.top };  
  this._calcBounds();
  this._updateObjectsCoords();
  this.set(position);
  this.setCoords();
}

fabric.GroupWithUpdateBounding = fabric.util.createClass(fabric.Group, {
  initialize: function(objects, options, isAlreadyGrouped) {
    this.callSuper("initialize", objects, options, isAlreadyGrouped);
    objects.forEach(object => {
      object.on("modified", this.updateBounding.bind(this));
    })
  },
	
  add(object) {
    this.callSuper("add", object);    
    object.on("modified", this.updateBounding.bind(this));
  },
  
  remove(object) {
    this.callSupper("remove", object);
    object.off("modified", this.updateBounding);
  }
});