At the moment it takes me about 3 minutes to get into the game, because of the slow autopatch and the integrity check.
Here's a quck method of executing the game without running the launcher. Should reduce loading time by 1/10th.
dnlg.exe -Login"username" -Password"password" -IP""184.108.40.206:20013" -ScriptClient"entities\client;entities\co mmon" -IPIrc"irc.jeux.fr"
This will launch the game client and log you in, using the current screen resolution you have, and the default shader quality from your ini files.
Note: You will need to run the DnL Launcher the normal way each time a new patch is released.