I don't think anyone cares. That's the point. For all but the most extreme cases, we're talking fractions of seconds of time savings here. No one notices that it takes 0.025 seconds longer to launch the Mail app so it doesn't bother anyone.
Stop making yourself crazy over geekbench scores. You're not a speed skater and the iPhone is not a pair of skates. It's a mobile phone. If I were you I'd worry about real things that really impact the iPhone experience like LTE availability, wi-fi speeds, the congestion of streaming data, gmail load times, and on and on. Fractions of seconds of processing time? Please.
Fractions of a second? I think you have been on the beach a bit too long.
Our iPhones have been throttled around 30%, and it takes more than 3 seconds to open default Mail app. We probably lucked out on having the better battery.