The MacBook Pro Mid 2012 has an HDD storage media which is better than the SSD storage media found on most MacBooks that have been available for more than two years. 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 actually the worst storage medium across all portable PCs of this age and spec.
The best storage medium across similar types of notebook PC is SSD.