Boost is a new feature in Grand Theft Auto 5 for the PlayStation 4 that allows players to speed up time or increase their health. Here’s how to use it:

  1. Go to the main menu and select “Options.”
  2. Select “Gameplay” and then “Boost.”
  3. Select the type of boost you want to use and press “Start.”
  4. You’ll see your current time speed up or your health increase, depending on which boost you selected. ..