Lomas wall hanging from Citizenry.

https://www.the-citizenry.com/products/lomas-wall-hanging?v=39357747396795 

Turbosmooth is assigned to the model with one iteration when rendering.
Number of polygons without turbosmooth - 1.64 million

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.