Placebo and/or other factors.
Nintendo doesn’t adjust clocks based on temps, it’ll always run at whatever the devs set it to until it reaches overheating ranges, where it’ll force sleep/shut off.
Yes, im not good on English, that part its just one of my things, but didn't know if its because this.
Then should be other factors, because my Switch still loading more fast, 2s aprox on the first load (tested now again opening the game at same time) and are the same revision (v1 Erista).