The Flex 10 has an HDD storage medium which is better than most portable PCs that have been available for around the same time as it. Most 2 in 1 laptops that were released more than two years ago 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 notebook PCs of a similar age and spec to the Flex 10.
Across comparable types of laptop the best storage medium is SSD.
If the storage medium of this Lenovo portable PC is too bad for you then you might want to look at the Lenovo Yoga (£1,060.16) (SSD), or the HP Pavilion x360 (£382.39) (SSD).