First yaourt -Syu is slow because querying database

[getzze]

see archlinuxfr/package-query#133
The first time I call yaourt -Syu, I have to wait like 1min because it runs pacman -Qdt before I am prompted to enter my password, then wait again for the repos updates.
Can the database querying be done after prompting for password, so I don't have to wait twice?

[getzze]

It's probably the same as #355
Setting SHOWORPHANS=0 in yaourtrc solved it (with the default AUTOSAVEBACKUPFILE=0), although I lose the ability to show the packages orphaned by the update.
I guess the best way to solve that is improving pacman -Qdt.