I think a key aspect to the situation though is that you won't get faster by trying to get faster. Of all places, I learned this while working in a grocery store, but have since verified the phenomenon in other domains (for example, reading; and it also just makes psychological sense).
I had been stocking groceries for about a month when I had an interesting conversation with two senior employees (20 or 30 years a piece at the job). One of them was telling me that I was doing well but that I needed to start going more quickly. The other saw the mistake in this advice and said something along the lines of, "Well, hold on, though: you know speed comes naturally with practice. He'll get faster once he knows the work better." The other senior employee thought about it for a second, and then agreed in full and admitted their mistake. As a consequence, I focused on learning my work well instead of trying to be fast—and I became one of the fastest stockers in the store within a year.
I don't think you can will speed to happen, or train it specially: it's a consequence of already having solved the problems at hand before, already knowing the solutions and not needing to figure things out in the moment.
So you aren't going to 'get sharper'; you'll just learn particular domains better or not, and the ones you know better you'll be perceived as sharper in.
I had been stocking groceries for about a month when I had an interesting conversation with two senior employees (20 or 30 years a piece at the job). One of them was telling me that I was doing well but that I needed to start going more quickly. The other saw the mistake in this advice and said something along the lines of, "Well, hold on, though: you know speed comes naturally with practice. He'll get faster once he knows the work better." The other senior employee thought about it for a second, and then agreed in full and admitted their mistake. As a consequence, I focused on learning my work well instead of trying to be fast—and I became one of the fastest stockers in the store within a year.
I don't think you can will speed to happen, or train it specially: it's a consequence of already having solved the problems at hand before, already knowing the solutions and not needing to figure things out in the moment.
So you aren't going to 'get sharper'; you'll just learn particular domains better or not, and the ones you know better you'll be perceived as sharper in.