Hmm are you use Samsung Magician for managing your SSD drive and updating your SSD firmware?
I will admit it, I only have my SSD OS optimisation settings set to
Maximum reliability and not set to Maximum performance @thedesolatesoul. The speed increase is already x times faster than my Samsung 1TB HDD, I also have SSD Over Provisioning setup as well.
Hmm I never knew that there were any issues with the 840 SSD's.
Here you go, as you can see from the bottom of the screen, my settings are set to reliability and not performance. As I said previously, Windows 8.1 is showing my desktop from power on in about 12 seconds (fast boot on) from power on (as long as there's no Windows 8.1 updates to install). That's more than good enough for me and that's without screen shots and diagnostics to show every little performance issue.
Nope I'm more than happy with my 840 and 830 drives. The most important thing to me is real world performance, and my SSD's are a load faster on average than my fasted HDD.