CM Life Sciences interview questions

We had a fast and straight forward screening interview about a role in a company they worked for. HR person gave all the necessary information for the interview. They asked additional questions to and expected to be answered immediately. After the screening we made the first interview as well. It was nice to be called by HR consultant after the first interview was completed. But unfortunately after making the first interview, they indicated that they will finalize and give a response in a certain time but did not inform ever although they were rushing to get answers from a candidate and it is unprofessional.