In addition to disabling IPv6 to improve network performance

[shortylickens]

You can also disable the Teredo Tunneling Pseudo-interface and get some improvement.

It actually helped me. Pages load up MUCH faster.

 

[DrGreen2007]

I dont have that on my Win7 or Win10 machines

 

[Ketchup]

It only applies to IPv6.

Teredo is a protocol that allows computers behind a NAT firewall (most home computers are) and without a native IPv6 connection to access remote IPv6 resources using only UDP protocol. The idea is that home users can start accessing IPv6 web services before their local connection supports the protocol, making the transition from IPv4 easier.

http://superuser.com/questions/22290/what-is-the-teredo-tunneling-pseudo-interface

 

[Elixer]

Negligible gains if any... tried this before on a test machine, and wasn't worth the trouble.