The phrase "a powerful performer" is correct and usable in written English.
It can be used to describe someone who delivers strong and impactful performances, whether in the context of acting, music, sports, or other fields.
Example: "The audience was captivated by her presence on stage; she truly is a powerful performer."
Alternatives: "an impressive performer" or "a compelling performer."
Mr. Smith, who spent 17 years with the company, developed a reputation as a powerful performer who stood out for his unusual combination of intensely dramatic performance and urbanity.
Ms. Freitas is a powerful performer, but her "Guintche" suffered from a similar whiff of redundancy.
Burly frontman Yannis Philippakis has matured into a powerful performer with a frisson of volatility.
In his late 40s, he picked up an oar again, to become a powerful performer at the Potomac Boat Club.
"She's such a powerful performer that it was a little intimidating actually to have to follow her," he said from Europe, during a stop on tour with Norah Jones.
A solo followed for Chi-Tsung Kuo, a powerful performer whose wearing and manipulation of a soft-feathered fan was filled with as much mystery as his presence at the start.
A Mac Pro might be a more powerful performer, but for most people, the iMac with Retina display will be the best all-around computer for their needs.
He was a very powerful performer on the stage and also a great writer and musician, so it was evident he was going to be very successful".
Gary W. Jeter II, a compact, powerful performer, and the sinuous Terk Waters — his opposite in size and temperament — succumb to melodrama in the final, sanctimonious duet when Mr. Jeter wraps his legs around Mr. Waters's torso and bends back until his head is aimed at the floor.
Joyce Trisler's "Journey" is a vehicle for a powerful female performer.
He was such a humble personality but such a powerful, understated performer.
