Have any additional information since the time you posted. I am interested in this or the Lg ips225V
An IPS panel will be slower than a TN panel in general. As far as the LG vs AOC, LG tends to make decent products (although Samsung is better), but I don't know much about AOC to be honest. As far as input lag goes, the Dell Ultrasharp 2312M has practically no input lag if that is a concern for you, but at 17.5ms I don't know if it is noticeable or not, it's something you would really have to test and see imo.