Model with metallic surface appearing jagged

I am working on rendering the attached model on the browser but i am facing an issue where the top part of the model which has the metallic surface appears jagged. I have set antialias to true and have also changed the far camera parameter to 1 but i dont see any improvement . Should i be adding some kind of post processing to fix this ?

you can try roughness =0 and metalness 0.5 or 1; for your material

Can you please share the asset with all textures in this thread?

scene.gltf (62.0 KB)

@Mugen87 Here is the model from sketchfab

Thank you for your suggestion. I tried roughness =0 and metalness =0.5 and didnt see the jagged lines for the metallic surface go away