Jolin Tsai's dance to what degree professional level?

Professional I can't say, only a dancer.

She always looks like she's dancing, but she's not, and it's not infectious. Especially in live performance, it's very programmed, it's like she's just gesticulating very hard to complete a set of movements. I think the real dancer's performance is not necessarily about how standardized each movement is, but rather about the soul of the dance that comes out from the inside, the spontaneity that comes from hearing the music and the rhythm and being able to improvise.

A simple sentence: she can put a master choreographer choreography out of the complete dance, but she left the dance is nothing.