Bulk Insert in codeFirstImplementation

Hi,

Please refer, http://stackoverflow.com/questions/5940225/fastest-way-of-inserting-in-entity-framework

In to existing, NopCommerce framework, in Nop.Data\EFRepository.cs, Changed a method as below,
        /// <summary>
        /// Insert entities
        /// </summary>
        /// <param name="entities">Entities</param>
        public virtual void Insert(IEnumerable<T> entities, bool enableTrackChanges = true)
        {
            try
            {
                if (entities == null)
                    throw new ArgumentNullException("entities");

                if(!enableTrackChanges)
                {
                    this._context.AutoDetectChangesEnabled = false;
                }

                foreach (var entity in entities)
                    this.Entities.Add(entity);

                this._context.SaveChanges();

                

            }
            catch (DbEntityValidationException dbEx)
            {
                throw new Exception(GetFullErrorText(dbEx), dbEx);
            }
            finally
            {
                if (!this._context.AutoDetectChangesEnabled)
                    this._context.AutoDetectChangesEnabled = true;
            }
        }

It is giving me quite good performance, but still, I m looking some fix to implement,"recreate nopObjectContext" as given StackOverflow link,

Can you please help to implement this.