if you're racing against the clock, the SR is not your preferred tool! I use an SE when I want to go quickly, although I think that the time spent on razor and face preparation, as well as the razor cleanup, stropping and oiling probably takes nearly as much time as the actual 2 pass shave that I do with both SE and straight.

As many others have said, this is meant to be relaxing, so if you're really in a hurry use an electric - and take the consequences