Job Interview Simulation

thanks! im getting ready for my interview so this was useful! Please reply to my question! Here it is: talking about weaknesses, seems that the most popular answer is: "im a perfectionist, so the job may take a while for me", it kinda sounds like a flaw, but at the same time it is a plus. So if i say this to my employer, wouldnt he be turned off, because I named the "perfect" weakness just like everybody does? thanks!