You can't make a valid comparison after one run with gears... after getting used to riding the ss version it will take you a little while to adjust and get the most from the multi geared setup.

My old 13km commute could be done in 23 minutes on my fixed road bike and I never bettered that on my geared road bike... if the road got longer and the terrain and conditions were more variable my geared road bike is faster.

Have been splitting my riding between my r20 (3 speed) and my P20 (21 speed) and my urban ride times are only a little better with the lighter and more aerodynamic P20.

If I was riding a straight 100 km with no stops the P20 would be significantly faster.