start up on mac book pro

Hi there. I have recently erased my HD on mac book pro and reinstalled osx. Since then when I start the mac up when I come to log on I have my normal ID profile and one next to it that says Disk Password. Doesn't matter which one I click it takes me to my normal ID profile. However it is so slow compared to how it was before. Before I reinstalled I only had my normal ID showing on start up and took 30 seconds from turning it on to being free to do whatever on it. Can anyone help please?