I don't know if your a believer in christ jesus or not but it's call integrity what your doing your not working for man your working for GOD if you are working to be praised you will be let down every time but when u got hired you agreed to work for the company and not giving 100 % percent recognized or UN recognized is not what u agreed to at the time of hire it sounds pretty selfish I apologize I have to be honest continue to be you a hard worker don't let other people dictate who you are

Not to be condescending Lee, but are you sure that you're exceeding their expectations, or are you just exceeding your own? Make sure that everyone is on the same page.

Be careful, doing less work is never a good idea if you want to show how good you do

That's always tough. Do you actively ask about how you can improve? At the very least that should draw attention to your work ethic.