F1 25 Australian Ferrari Race Setup

It depends on where you experience the tyre wear, e.g. traction zones, corners etc. and which of the tyres the wear out too quickly, e.g. fronts, rears, left side, right side.

For general tyre wear decrease, try reducing the negative camber angle on the front or the rear, depending on where you experience the increased tyre wear. This should lessen the aggressive tyre angle and thereby the tyre wear at the cost of responsiveness but should provide more stability.
You can also increase the front and rear wing angles in order to take some of the pressure off of the tyres. The car is thereby more dependent on aerodynamics through the wings rather than mechanical grip through the tyres.

For traction zones (rear tyres), try reducing the on-throttle differential. This should aid in gradual traction increase, reduce snap-oversteer out of slow traction zones, thereby decreasing tyre wear, but at the cost of rear end stability in fast corners while on-throttle. (generally not an issue in Australia as the corners are quite shallow in nature)

For corners (left/right tyre wear), try reducing the front suspension stiffness and evening out the rear suspension stiffness for a more balanced approach. Soften the anti-roll bars so the car leans more. This will take some of the load off of the tyres and give you more stability in the corners at the cost of initial responsiveness. (again, generally not an issue in Australia as the corners are quite shallow in nature)