"Speaking to Edge about the ease in which the studio achieved results when working on the Xbox One and PS4, Trottier said: "The new platforms are a lot closer to PC, so my engineers could do the R&D on PC and we knew it would work fairly easily on next-gen platforms. It needed to be adapted, but everything does.
"It's always a question of compromise about the effect, how it looks, and the performance it takes from the system. On PC, usually you don't really care about the performance, because the idea is that if it's not [running] fast enough, you buy a bigger GPU. Once you get on console, you can't have this approach."
Make the game as good as you can make it, then make lower settings.
Optimization != only having low settings
Just Cause 2 is a good example of how optimization AND having high settings (back in 2010, I think) should be done, I think. The game is optimized well, but you can crank up the settings to make it look way better than the console versions if you want. I have everything maxed, even with 32x CSAA I get a steady 60+ fps.