This mod aims to bring the gameplay and the physics to another level with changes to the camera to acommodate Sonic's improved mobility, the major changes are listed on the video with some other minor changes that all add up to make Sonic feel better to control.
The changes include:
Better turning: Sonic can make much sharper turns without needing the drift, but you're still gonna need the drift when running on water and on ice.
Improved aerial mobility: Sonic's aerial control when jumping has been improved which allows for easy aerial redirection and you even have a slight chance pull off some clutch saves if you accideantally jump off a ledge
Air Boost changes: The air boost is now affected by gravity and lasts for a full second, so if you boost close enough to the ground, you can transition from the air to the ground smoothly, which improves the general game flow.
Improved rotation speed: Sonic now turns around much faster on the ground.
Improved angle correction speed: When Sonic runs off a steep ramp he keeps his angles and he takes a while to correct his angles, the speed for this action has been improved significantly.
Increased Brake Power: The break has been made stronger so you can stop practically on a dime and redirect yourself instantly.
Camera changes: The camera is now farther away from Sonic and at a higher angle so you can have better visibility of the terrain you're running and various changes to camera delay were made.