The Lenovo Flex has a better storage medium than most portable PCs of a similar spec and age to it. This portable PC has an HDD storage media, whereas most similar spec portable PCs 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 have been available for a similar time to the Flex.
The best storage medium amongst similar types of portable PC is SSD.
If the storage medium of this 2 in 1 laptop is too bad for you then you might want to look at the Toshiba U920t[plb_1453648_price] (SSD) which also has a higher rating.