"FG" is all non-free throw shot attempts, including three point attempts, layups, and mid-range jump shots. So 45% shooting percentage includes long and mid-range 2 point attempts which he seems to be hitting fairly consistently.
His three point percentage (which is also worked into the 45%) is bad, though. What is his jump range?
Having a better driving attribute and having teammates with better passing will get him better shots and raise his percentage, too.