Nawrocki announced on Thursday that he had signed a law imposing a windfall tax on fuel companies and called on the government to immediately lower prices at petrol stations.
He also said he would refer the law to the Constitutional Tribunal for subsequent review.
At a news conference on Friday, Czarzasty said the president could have signed the legislation two months earlier.
He said Nawrocki eventually signed it because of "pressure and fear of public opinion."
Czarzasty also questioned Nawrocki's decision to use a presidential address to announce the signing, saying such addresses should be reserved for matters involving internal or external threats or issues of vital importance to national security.
He said Nawrocki had used the address "because he had not vetoed the law," adding that the president had so far vetoed more than 45 laws.
Czarzasty also criticised Nawrocki over his recent veto of a government proposal involving the EU's SAFE defence loan mechanism, saying presidential vetoes had already cost Poles more than PLN 8 billion (EUR 1.8 billion).
Czarzasty said Nawrocki had refused to approve ambassadors for Polish diplomatic missions in countries including Italy, India, Ukraine, the United States, Germany, France and Britain.
"This makes Poland look ridiculous" abroad, Czarzasty told reporters.
He also said he expected Nawrocki to accept the oath of Constitutional Tribunal judge Maciej Berek, recently elected by the lower house, appoint a new head of the State Protection Service (SOP), and appoint 46 district court judges.
"I expect the president to take an unequivocally negative stance towards ... Putin at the G20," Czarzasty said, referring to an upcoming summit of the G20 group of major economies in the United States in December and calling Russian President Vladimir Putin a "criminal and murderer."
He added that he expected Nawrocki to be "effective in his relations with President Donald Trump at the G20, not engage in idolatry."
Czarzasty also said Nawrocki's falling approval ratings were influencing his behaviour, claiming that his approval had dropped below 50 percent after one year in office.
(sp/gs)
Source: PAP