The phrase "confident performance" means doing something with certainty, self-assurance, and without doubt or hesitation. It refers to displaying a strong and assured manner while accomplishing a task or delivering a presentation. Full definition
ATTACKERS ALEX IWOBI 6.0 Not the most confident performance from the young lad. (justarsenal.com)
Meeting Nancy was a treat, as we were given one of the most confident performances of the production from Josephine Stark Harding, confident but not overtly so. (qaeducation.co.uk)
That gives the latest Jaguar XF the kind of confident performance in bad weather or rougher terrain that is hard to find in a sedan. (ftmyersjaguar.com)