Rigel sofa:

2015 x 890 x H 700 mm
https://voronezh.inmyroom.ru/products/1605367-pryamoj-divan-rigel-bezhevogo-cveta 



Without Turbosmooth modifier:
Polys: 17,964
Verts: 18 111
With Turbosmooth iterations 1 modifier:
Polys: 143,624
Verts: 72,137

The Turbosmooth modifier with Isoline Display was applied to the required objects;
There is an FBX file (if necessary, apply the Turn To Poly modifier to the FBX file);
For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR.