Disable Nagle's Algorithm:


Nagle’s Algorithm groups together data packets at the cost of achieving a smoother Internet connection. But having Nagle’s Algorithm enabled on your device when gaming online can contribute to latency issues.

To disable, open Registry settings, which can be found under Start > type regedit > Regedit. From there, click the drop down menu until you see HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfac. Under Interface in the drop down menu, you’ll notice file names comprised of letters and numbers. To ensure you select the correct one, match your IP address with the listed DhcpIPAddress found in one of the files. To check your IP address, go to WIN KEY + X > Control Panel > Network and Internet > Network and Sharing Center > Connections > Details > IPv4 Address.



Once you’ve tracked the correct IP address with your Internet connection, right-click on the folder and select New > DWORD (32-bit) Value. Then, create two DWORD Values; name one TcpAckFrequency and the other TCPNoDelay. Finally, double-click on each one and set their parameters to 1. This will activate the parameters, thus disabling Nagle’s Algorithm.



Source: https://www.electronicproducts.com/Programming/OS/How_to_optimize_Windows_10_for_gaming.aspx