How do I add mobile device tilt sensitivity

I recently exported my game to my mobile device for testing and something I notice with my endless jumper is that regardless of how far you tilt your device the character moves at a constant speed

How would I need to code this so that the further you tilt the device the faster the character moves?

I've tried adjusting the characters platforming speed but that seems like a complicated way of doing so and i'm sure there's an easier solution