Anyone know that the dell ultrasharp 2407wfp input lag rating is?

[Things change I've changed]

Just upgraded to a BenQ GW2765HT from a Dell Ultrasharp 2407wfp and the input lag on the BenQ is awful, I tried them gaming mirrored and it really shows the BenQ lagging behind, really gutted because other than that I really like it, TFT central say that is around 25ms but it feels a lot more than that imo.

Anyway before I order another monitor I would like to know if anyone knows what input lag the 2407wfp is so I can at least match it.

I'm after a regular 60hz 27" IPS panel with as low input lag as possible.

 

[Trying]

Given the way it was tested back in Dell 2407wfp review days...TFT reports its lag was 23.7ms.

 

[Things change I've changed]

Given the way it was tested back in Dell 2407wfp review days...TFT reports its lag was 23.7ms.

Which is what I don't understand because it is night and day difference to the BenQ which surprised me a lot as TFT Central rate that around 25ms