The most important thing to remember about curios is that their timer still counts down while you're logged out of the game. They were introduced so that 'grinding for LP' wouldn't mean deforestation and repetitive motion injuries, and they do that pretty well. The only thing anything like grinding involved is producing the materials to craft large numbers of curios, or extensive foraging, but you can always just forage once a day, craft things along the way, and use what you find to make food just to cover your travels. I wouldn't call that 'grinding'.
It's also impossible to win, so while you can grind your way in the general direction of victory, you'll never actually get there. I encourage just having fun playing the game instead of obsessing about whether your statistics are 'good enough'--if you're alone, you're never going to be able to destroy a major faction, anyway, and progress gets exponentially slower and less meaningful the higher you go, so trying to rush to the top (without people giving you free stuff) is a sure way to burn yourself out.