Hi there,
You can turn the unlock animations (or change them to other available styles) on the Lockscreen settings of your phone. As for the automatic prompt to input password, unfortunately that's not possible unless you disable the lockscreen on your phone (or try to use a 3rd party option). In its stock form, the lockscreen will always be a two-step process if you have a secure unlocking method set up (password/PIN/pattern). The only method that 'bypasses' this is Fingerprint. If you have a non-secure lockscreen, you will only be asked to swipe to unlock.