I don't know whether this metallic reflection is correct. It seems that the glasses reflection on the table gets incorrectly broadened out to a fixed distance, rather than a smooth falloff. Here the table is a Principled BSDF with 1.0 Metallic and 0.1 Roughness. The Cycles render has de-noising turned off, and 2048 samples. Are there any parameters I can tune to improve this reflection?