reflection weakness-superior calcing can by pass

At that very moment, she became a wind colored the black of mourning and moved right
up to Accelerator.
Mina Mathers was “something shaped the same as a person”. She was actually a grimoire,
so she was not a human or even a mammal. Thus, her skeleton, muscles, and various
organs did not need to move in the normal fashion.
And that meant she could entirely ignore the upper limits of the human body which was
bound by calcium and protein.
By the time Accelerator saw her, he could already feel the pressure of the tightly clenched
fist striking his entire face. The strength of the word “reflection” was entirely blown away.
It had not functioned at all.
The black cat witch’s right hook caught the #1’s cheekbone and she continued swinging
with her entire body weight behind it. The great roar of impact only arrived after a short
delay. When she saw the slender form quickly spin around, Mina Mathers whispered to
him.
“Even the #1’s reflection is reliant on the calculations you use to control that power.
Simply put, you cannot control any vectors with which your conscious and unconscious
calculations cannot keep up. Of course, with the brain of Academy City’s #1 and the
Misaka Network at your disposal, that would not normally present any kind of problem.
…Yes, unless you began a benchmark test with a true processing device. And even if I
have been freed from the bonds of that largescale parallel processing device, I am still
doing the Thoth Tarot.”

- New Testament Volume 19 Chapter 1 Part 6