This laptop has an HDD storage medium, which is the most commonly found storage medium on many processor core portable PCs that have been on the market for a comparable time to it. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.
It may also be worth considering one of the alternative laptops that have an HDD storage media currently available including the G75, or the N750JK both from Asus or the HP ZBook which has better reviews.
If the storage medium of this laptop is too bad for you then you might also want to consider the Samsung NP905S3G (SSD), the HP ZBook 17 ($2,838.18) (SSD), or the Toshiba Satellite P50t-B (SSD) which also has a higher rating.