To the original poster:
PLEASE detail your hard drive information.
How many drives?
What kind of drives (SATA, SATA 3, internal, external, USB, etc.)?
What spin rate for the drives?
How are things split across your drives, if you have multiple drives (are projects on the same drive as the OS, are samples and synths on the same drive as projects, all of that plays into project loads).
Questions about your drives have with my post now been asked 3 times. Please respond with as much detail as you can provide, so that we can collectively help you get to the bottom of this.
Bob Bone