You suck as a reader. Out of pretty much any example of Luffy I'll go with his defeat in Kuri, where he totally took a shit on Law's plan to fight Kaido before he even knew what he was up against. Luffy's mindset isn't attrition or long game, which is why he crafts his entire fighting style around shotgunning his power, as he's beem doing since Gear 2. It's why he's gotten further in two years than anyone else in twenty.
He took a long time with Cracker and Katakuri because in each fight it was necessary, but if there's no benefit to it then he'll just go out on his shield.