Chosen Solution
After installing El Captain my MacBook Pro is booting up slowly. Someone suggest turning off File Vault. Found info but not how to turn off. Update (04/18/2016) Sorry about late responce and thanks every one who responded. I will attempt to do what was suggested.
First try going into your startup items and remove unneeded one: Go under the Apple to System Preferences > Users > start up items You may need to unlock it it using your password.
Reset the pram sometimes helps, upgrade to ssd best option
