The Apple MacBook Pro Mid 2012 has a better storage medium than most laptops of a similar type and age to it. This notebook PC has an HDD storage medium, whereas most MacBooks that were released 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 notebook PC's storage medium (HDD) is in fact the worst storage medium across all similar spec notebook PCs that have been around for more than two years.
An SSD storage medium is the best storage medium amongst comparable types of notebook PC.