This argument has never made sense to me. Unless you're new to that game, you're vastly more experienced at game combat than your character is. They've only had their adventuring lifetime; you've had that plus the adventuring lifetimes of all your previous characters, plus any combats you've run as a GM (if you have). And you're not under life-or-death pressure sitting at the table. And even if the GM insists that you have to state what you're doing immediately when it's your turn, you still have a lot more time to think about it than your character does. All that should more than compensate for the character having a higher base intelligence.