Having trouble getting a smooth collision with dynamic mesh collider

I am trying to create a dynamic mesh to be used as a collider. Right now I am generating a plane-like (not enclosed) mesh, which can be straight or arched. I have the mesh and collider generation working fine, and the character can jump on and ran around on the collider when it is a flat plane. But when my character tries to jump on or interact with an arched mesh (e.g. a half circle) it's very bumpy/spastic.

 Mesh mesh = new Mesh();
         
         mesh.name = "Mesh";
         mesh.vertices = verts.ToArray();
         mesh.uv = uv.ToArray();
         mesh.triangles = tris.ToArray();
         
         mesh.RecalculateNormals();
         mesh.RecalculateBounds();
         
         GetComponent<MeshFilter>().mesh = mesh;
         
         GetComponent<MeshCollider>().sharedMesh = mesh;