My app is considerably slower when served by IPv6 vs IPv4.
I noticed this when I was comparing HAR files of two requests made on near identical spec machines but with huge differences. What stood out immediately was the ServerIPAddress in the slow IPv6 one takes ~1000ms to resolve just the initial HTML of the page whereas the IPv4 one takes ~200ms to resolve the same content. The response is 22kb for reference.
Is this issue known?
Also for now is there a way I can disable it? I can of course disable IPv6 on my own machines but my users won’t be aware of this limitation and will suffer the performance issues