The Aspire R7-571G has an HDD storage media which is better than most notebook PCs of a similar age and type to it. Most 2 in 1 laptops that have been available for a comparable time to it have an SSD storage media. 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 media is actually the worst storage medium amongst all 2 in 1 laptops that are a similar age to the Aspire R7-571G.
Amongst similar types of portable PC the best storage medium is SSD.
If the storage medium of this Acer laptop is not good enough for you then you might want to look at the Toshiba U920t[plb_1453648_price] (SSD) which also has a higher rating.