Disc 0 activity spike with freezing, can it be fixed?

[rokclimb15]

That's a decent 2.5" drive, but the cache is a little small. You might achieve better performance by installing a drive with a larger read cache (16MB+). Also make sure you're using AHCI in your BIOS and Windows Vista, 7, or 8. NCQ can make a big performance difference on a 5400rpm drive (most 2.5" drives are only 5400rpm).