It does come pre-calibrated with a report document, though I have to confess, I didn't look at it. Unfortunately I don't know anything about testing for input lag and response times, so I don't understand how to use the site you linked to - PCM2 will probably be able to provide a much greater insight.
For my part, I have not noticed any problems, but all I have to compare it to are the Dell U2212HM it replaced, and the ancient Hazro HZ30W I use with my other PC. Sorry for the vague, subjective responses, I suspect that they will not be of much use to you :|