grouped edge colliders causing strange effects to physics 2d bodies

Hi, I am trying to make a 2D Physics platformer using Unity. I am generating level dynamically by instantiating the platform pieces which are placed very closly (which are tiny pieces with an edge collider.) I am trying to roll a Circular Sprite (with a Circle Collider & 2D Rigidbody ofc.) on this generated platform made of closely placed pieces. It all works fine when the Circle rolls slowly. As it picks speed. It starts bouncing (i m guessing at each joining point) - kinda like a bumpy road.

• I have placed the platform pieces as close as visually possible.

• All the pieces are at the same Y & Z co-ordinate.

• I have even tried overlapping the pieces - still causes the same bounce.

• If my path is straight (i.e. no curves) the roll works just fine. But I intend to have curved paths in my levels.

• I intend to create a level editor as well - so using pre-defined levels wont help.

I am trying to get rid of the bouncy effect which appears as the Circle (wheel) moves forward.

• Should I be using a different approach to generate the level? As in not using small pieces but some other technique?

• Is there any way - If I can create a single collider for all pieces(even a polygon collider would be fine)? (Using a single collider and stretching it won't fullfill my needs- because The path may have curves as well, as illustrated in the image)

• Should I avoid using the in built physics?

Any inputs would be greatly appreciated.