For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured considering PBR.
Render was made with TurboSmooth 2 iterations. So if you need you can regolate it. Without TurboSmooth there are 8578 polygons. With 1 iteration 68800, with 2 iterations 275200 polygons.
In the interior if there is no near view you can easily use this model without TurboSmooth.
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