Yeah... Nah. I personally wouldn't believe that I was properly cleaned if I was in there only 5 mins. Not that I'm timing myself but let's just say I'm a slow worker, lol...
Shampooing my hair and scalp takes me at least 3 mins of vigorous scrubbing, +1 min to rinse and scrub some more. I like to get to the roots and really dig my fingers in there.
Face takes about 2 mins cos I like to scrub it thoroughly to make sure I get my $$$ worth... FMD those face wash cost a bomb! +1 min for rinsing off.
That's more than 5 mins already, lol...