I really don't think so. She was great in it, a great supporting character, but not one moment in that movie did I think she was stealing the show. That doesn't mean she wasn't good, it was just that Steve and even WS were better.
Hell, if Falcon had more time on screen I think he would have been closer to stealing the show... everytime he was on screen he was funny as hell, had charisma, and/or it was a cool action scene. Just wasn't on screen enough.
Speaking of which, I hope Falcon doesn't get "lost" in Civil War. I think he very well could. MCU Falcon is just... so cool, especially compared to the 616 one (although FalCap has been an improvement).