Grand Theft Auto sample profiles for PS4:

Note: the aim/look mechanic is very slow and had unpredictable acceleration jumps, so be aware you may have some aiming quirks to get over.

There are both first person and third person profiles for GTA V and each requires different in-game settings for Xbox One:

First Person Settings:
Controls
Targeting Mode: Assisted Aim - Partial
First Person Control Type: Standard FPS
First Person Look Around Sensitivity: Max
First Person Aiming Sensitivity: Max
First Person Aim/Look Deadzone: Off
First Person Aim/Look Acceleration: Max
Camera
First Person On Foot Field of View: Max

Third Person Settings:
Controls
Targeting Mode: Assisted Aim - Partial
Third Person Control Type: Standard FPS
Third Person Aiming Sensitivity: Max
Third Person Look Around Sensitivity: Max
Third Person Aim/Look Deadzone: Off
Third Person Aim/Look Acceleration: 50%