Why is the recruitment result so slow in the Second Affiliated Hospital of West China?

Need hospital discussion and audit. According to the recruitment website of West China Second Hospital of Sichuan University, the hospital needs to go through three rounds of interviews, namely, one-on-one interview, two rounds of group interviews and three rounds of headquarters group interviews. Every round of interview has to be discussed and decided by the hospital personnel department, and it takes a week to get the interview results, so the waiting time is longer.