Well as nuggets mentioned i dont think a file would be able to change what ping u have, maybe making it worse then better how ever i would like to know whats the way it works since you created it
This will make a new hkey 32 bit called "TcpNoDelay" on your pc bssically sending packets faster than normal
With no tcpnodelay:
Server: Hello comouter I will send a data packet over to you. Do you receive it?
Computer: **no response**
Server: stop wasting my time computer answer me now
Computer: **no response**
Server: Okay theres more data packets that are sending right now. Hurry up
Computer: Okay thanks I get the first one and just got ones after
Server: Why didnt you reply faster from the first one? I've been waiting for ages
Computer: Sorry, im just trying to make the network efficient by bundling the acknowledgement together in pairs. This is how i setup up by default.
This way without regedit is a slower process which your computer takes immense about of time to respong server's data packets.
With TcpNoDelay
Server: Okay I just sent a data packet. Do you receive it?
Computer: Yes I did send the next one.
Server: Wow that was fast. Here is the next one.
Computer: Yup I am keeping with all your data packets you are sending
This way with regedit, it will increases your latency. You will not experience ANY lag.