My imac osx start very slow

Question

my Imac  OSX  VERSION 10.9.5 START VERY SLOW

Answer 1

Check your system Login/startup items in OS X System Preferences under the Accounts icon- Login items tab.
If you have more than 6 items trying to launch at startup, you need want to remove these apps from the automatic launch/startup list
Add or remove automatic items
Choose Apple menu > System Preferences, then click Users & Groups.
Select your user account, then click Login Items.
Do one of the following:
Click Add below the list on the right, select an app, document, folder, or disk, then click Add.
If you don’t want an item’s windows to be visible after login, select Hide. (Hide does not apply to servers, which always appear in the Finder after login.)
Select the name of the item you want to prevent from opening automatically, then click Delete below the list on the right.