Thank-you for your question.
In regards to input lag times on the NX-VUE27, there is no definate one answer due to the fact that we use different variations of the LG H-IPS LM270WQ1 panels for each production run. There may also be a mix of different H-IPS LM270WQ1 panels for a NX-VUE27 production run - which is why there is no one universal color or calibration profile for the NX-VUE27.
Each version of the LM270WQ1 may have varying input lag times which could be higher or lower as seen here on TFT Central:
For example our first production run of the NX-VUE27 used LG H-IPS LM270WQ1-SDE5 panels when we originally were going to use LM270WQ1-SDA2 (which had a lower input lag), but there were no LM270WQ1-SDA2 that were A+ or A grade available at the time of production.
The main reasons why we are using different models of the H-IPS LQ270WQ1 panels is due to these requirements for the NX-VUE27:
1) The LG IPS Panels must be from A+ or A grade batches. We will NEVER use
or accept A- grade (2 levels below perfect) or lower grade LG IPS panels.
2) Minimal or no back light bleeding on the NX-VUE27 (Not to be confused with IPS Glow).
3) To adhere to Class 0 or Class 1 of ISO-9241-302, 303, 305, 307:2008 pixel defects. Maximum pixel Anomolies allowed for the NX-VUE27 is 5.
Input lag, contrast ratio, brightness and color temperature settings/performance may vary due to the different versions of LG IPS panels used to assemble the NX-VUE27. Also input lag times differ depending on the DVI-D, HDMI, D-SUB, or DisplayPort 1.2 connection used with your hardware.Edited by Peter Nixeus - 12/28/12 at 7:10pm