In all the talk of graphical downgrades no one seems much preoccupied with 'why?'. Why build something and then proceed to tear it down, piece by piece, in the hope that ever more diminished expectations about the final product won't be severe enough to...
Learn what the different Globlins do and you're in with a better chance.
Look for big chains at the start to fill up your tank.
Remember to read what the characters tell you to make sure you know what you're trying to do.