"effortless performance" is correct and usable in written English.
You can use it to describe a person or entity that is displaying a high level of skill with a consistent lack of difficulty. For example, "The dancer's effortless performance captivated the audience."
For a generation of buyers raised on Marks with effortless performance and up to 365 horsepower, the limp German diesel came as a rude shock.
Everything about this luxury hatchback is smooth: the sweeping lines, the effortless performance, the tasteful interior, the best-in-class telematics.
A video of her effortless performance of a seemingly impossible transcription of "Flight of the Bumblebee" has gone viral on YouTube.
There was good reason to predict a Triple Crown sweep for Fusaichi Pegasus after his seemingly effortless performance in the Kentucky Derby on Saturday.
He said: "Hugh is one of those extraordinary British actors whose effortless performance and onscreen charm has endeared him to generations of audiences worldwide.
Angela Nikodinov grabbed the other first-place score after an effortless performance while fending off the emotions of losing her coach to cancer in November.
Thanks to Blanchett's convincing, almost effortless performances, the words come across as filler, verbal Lorem ipsum.
His effortless performances as a badass in both Wedding Crashers and The Hangover may have catapulted him into Hollywood's big league, but what hasn't been so easy, he says, is getting the industry to see past all that off-the-leash, bad-taste humour.
Its smooth, effortless performances by Jean-Pierre Bacri as Jacques, a sound engineer for classical and jazz recordings in his 50's, and Émilie Dequenne (from "Rosetta") as Laura, the beautiful but opaque 20-year-old housekeeper who invades his life, capture the clash of middle-aged wariness and youthful impetuousness.
Just as the comic-book open-mouthed wonder of Katherine Copeland gave spectators a glimpse into the wonder of winning a surprise gold medal, the tears of those who have missed out on top slots, such as Holly Bleasdale, have driven home the sacrifices behind seemingly effortless performances.
Joan Crawford likewise expressed her admiration for Tracy's seemingly effortless performances.
