My laptop takes a lot time to show login display?

Hi there, I have recently purchased HP Probook 4530s and i have enabled the finger print sensor to log in user account. Before doing that, it didn't take that long to show the log in screen after booting the windows. But now it take like 2 or 3 minutes to show the log in screen. I don't wanna turn off the finger print sensor feature instead i can switch off the face detection thing but i don't know how to do this. Please tell me the solution as my bro is making fun of me that your laptop takes that long to boot up even having 4giga of ram =p