There are a few things that one can do to a PC to make it faster. Upgrading GPU, CPU adding RAM are all viable options but upgrading your mechanical hard drive to a solid state drive gives a vary noticable increase. There are only a few ways to make mechanical hard drives faster; one is to increase the rotational speed and we've seen this done. At one time most standard hard drive platters rotated at 5400 RPM, now most rotate at 7200 RPM and server drives can rotate up to 15,000 RPM. Other ways are to increase the cache sizes, upgrade the controllers on the hard drives, but it is still a mechanical rotating assembly that stores bits and pieces of information here and there as the drive writes to the platters. When the drive reads from the platters it grabs a bit here and a bit there but inbetween it has to seek for the next bit of information, and if the drive has to wait for the information, so do you.