>>13439769>>13439597Yes, but it can be trained, and neuroplasticity can be increased with exercise and drugs.
The actual velocity of your brain is probably set in stone, but, by practicing those skills enough, your brain can use intuition and memory in place of conscious thought to finish certain thought processes faster than consciously possible.
Of course it's not gonna be just as easy for everyone, and for some it will probably not be worthwhile, but training your logical and mathematical problem solving abilities is very much possible.