Obviously, I can’t say for sure, but I personally think that increased rationality probably won’t make you more intelligent in the speed sense.
I do suspect that since both intelligence and rationality, being more rational does help you solve problems faster in a sense similar to how being more intelligent would.
I also suspect being more rational is more helpful than being more intelligent; it’s easy to use your big brain to shoot yourself in the foot.
Obviously, I can’t say for sure, but I personally think that increased rationality probably won’t make you more intelligent in the speed sense. I do suspect that since both intelligence and rationality, being more rational does help you solve problems faster in a sense similar to how being more intelligent would. I also suspect being more rational is more helpful than being more intelligent; it’s easy to use your big brain to shoot yourself in the foot.