The Transformer Book T200TA has a better storage medium than most similar spec portable PCs that are a comparable age to it. This Asus notebook PC has an HDD storage medium, whereas most 2 in 1 laptops that were launched around the same time as it 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 laptop's storage medium (HDD) is in fact the worst storage medium across all laptops of this age and spec.
The best storage medium across similar types of laptop is SSD.