I've run both 87 and 93. I would probably need a stopwatch to tell if there's any difference from 0-60, because I didn't feel it. The main advantage of the turbo is the low end torque, which is the same no matter what octane you use. Since 93 is about 60 cents a gallon more than 87 here, and I'm not tracking the vehicle, it's kind of a no brainer for me.
If the price was say, 20 cents apart, it would probably be different.
Just to be clear, I am not criticizing you for running higher octane. If you spend enough time above 4k RPM, it's probably worth it.