The Aspire R14 has an HDD storage medium which is better than most laptops of a similar type and age to it. Most 2 in 1 laptops that were released one year ago have an SSD storage medium. 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.
This notebook PC's storage medium (HDD) is actually the worst storage medium across all comparable spec notebook PCs that came out around the same time as the Aspire R14.
The best storage medium across comparable types of notebook PC is SSD.