The Pavilion X360 11-k120nr has an HDD storage medium which is better than the SSD storage medium found on most laptops of this spec and age. 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.
An HDD storage medium is in fact the worst storage medium amongst all notebook PCs that were released more than a year ago.
An SSD storage medium is the best storage medium amongst comparable types of laptop.
Other laptops that have an HDD storage media currently available which you might want to look at include the Lenovo Flex 15[plb_2899541_price] which has better reviews.