The Asus T100TA has an HDD storage medium which is better than the SSD storage medium found on most 2 in 1 laptops that have been on the market for a similar time to 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 2 in 1 laptops that have been around for around the same time as the T100TA.
The best storage medium amongst similar types of laptop is SSD.
If the storage medium of this 2 in 1 laptop is not good enough for you then you might want to look at the HP 13-r100dx (£691.82) (Hybrid-HDD).