Your solution to improving cooling is should alleviate issues where it feels like the car falls flat on its face around 3-4k RPM while accelerating or anything more than 50% throttle is completely useless.
For me, the 1st gear annoyance under 3k RPM is a different situation. Power isn't linear, and it is abrupt once the needle moves past 3k RPM while throttle is steady at about 30-50%. Power builds slow, then surges immediately. It's just annoying. It's probably because when the car builds power slowly, the usual response is more throttle.
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