The D 5700XA has a faster storage speed than most computers of a comparable age and spec to it. This computer has an SSD storage medium, whereas most few processor core PCs that have been on the market for a similar time to it have an HDD storage medium. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.
This personal computer's storage speed (SSD) is actually the best storage speed across all personal computers of this age and type.
An HDD storage medium is the worst storage speed amongst comparable types of personal computer.
If the storage speed of this desktop computer is too slow for you then you might want to consider the Apple Mac Mini Late 2014 (£650.78) (Flash).