Hi all. These past days I noticed a very High TTFB (2 seconds and more) in a fresh WordPress install in Local.
After several tests, I discovered that PHP connection to DB with IPV4 and IPV6 system active gives a very high TTFB, if you change your website wp-config.php connection to database host in the constant from localhost to 127.0.0.1 the time goes to normal with a few ms.
All the checks and results in https://tabernawp.com/wordpress-local-problemas-con-ttfb-2020-07-05.html sorry because it is in Spanish, but you can live to translate it with Google.
I wait that this info could be useful to all of you and maybe, Local team make some changes in Local configuration to restore good TTFB time by default without to change host connection to 127.0.0.1
Kindly regards, Carlos Longarela.