The Pavilion x360 has an HDD storage medium which is better than the SSD storage medium found on most 2 in 1 laptops that were released around the same time as 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.
This laptop's storage medium (HDD) is actually the worst storage medium amongst all portable PCs that are a similar age to the Pavilion x360.
Amongst comparable types of laptop the best storage medium is SSD.
We think you might also be interested in some of the alternative portable PCs that have an HDD storage media currently available including the FLEX 15, the Yoga, or the Flex 10 all from Lenovo which is cheaper.
Portable PCs with a better storage medium that might be worth considering include the Toshiba Satellite U920t (SSD) which is also cheaper.