The phrase "act poorly" is correct and usable in written English.
It can be used to describe someone performing a task or behavior in an unsatisfactory or ineffective manner.
Example: "During the presentation, he seemed nervous and acted poorly, which affected the audience's engagement."
Alternatives: "perform badly" or "behave ineffectively".
I don't act poorly unless I've been provoked, OR unless I just really wanted to, whether it's warranted or not.
Therefore, using Aza-dC in clinical trials of patients with teratocarcinoma should be cautious, in which the drug will target only EC cells, but might act poorly against differentiated teratoma tissues.
But beyond that, he said, the management acted poorly on a human level.
The charm of Elliott's relaxed performance can't save this otherwise poorly acted, poorly written play.
Dumb, badly acted, poorly directed, historically inaccurate, 47 Ronin totally saved my life over the past month or so.
If Cosby had acted poorly in his sexual life, according to the defense, it was his infidelity that had been the problem.
Most politicians are not bad people, but far too many have acted poorly and the reluctance of far too many of them to tell the truth is dispiriting.
The widespread cultural norm of patriotism makes it more difficult for citizens in each country to recognize the ways in which their respective nations have acted poorly toward others or would stand to benefit by learning from others.
He just tried to toe poke it out of his grip". Former Arsenal striker Ian Wright: "To be fair, the ball boy and Hazard acted poorly.
Rousey clambered for sympathy, and acted poorly as a former champion, not in terms of fighting performance (she is a champion through her performance now and forever more) but in terms of her character, attitude, and how she carried herself in her loss.
Marge acts poorly in public and doesn't care about the upkeep of the family?
