nothing wrong with performances here , 
(ROOT (NP (NP (NN nothing)) (ADJP (JJ wrong) (PP (IN with) (NP (NNS performances)))) (ADVP (RB here)) (, ,)))
(ROOT (NP (NP (NN )) (ADJP (JJ ) (PP (IN ) (NP (NNS )))) (ADVP (RB )) (, )))