If you seem to have fun on the stage and if you really shows how glad you are and if you have a good contact to the audiance, they will like it although you play wrong as hell.
If you goes up to the stage, bored and doesn't look happy or excited but play better than you have ever done before, the audience won't come up to you and say how good you played.
Performing music isn't ONLY technique, it's feelings, emotions and much deeper body languages. If you aren't motivated, which you may feel although you're a pro, the Whole (which I mean the ensemble of feelings, emotions, charisma AND technique) won't work.
Peace Sells... But Who's Buying?