Forgot to mention, it's Mojave 10.14.5.
From putting the password in to get the desktop background rendered: 2m 16s
Rendering desktop icons: +17s
From clicking the taskbar icon to load Chrome: 2m
Even then actually opening a web page then takes ages.
Doing anything at all until it's been on for a bit is a real trial. Opening Excel took about 1m 20s when freshly booted.