Sofa Adeline:
2825 x 1765 x H 820 mm
https://roomsee.ru/divany/uglovye-divany/308523-divan-reklajner-adeline-uglovoj-levyij-sero-korichnevyij 

Without Turbosmooth modifier:
Polys: 23 456
Verts: 23 697
With Turbosmooth modifier iterations 2:
Polys: 750 864
Verts: 376 160

The Turbosmooth modifier with Isoline Display is applied to the necessary 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 use version no lower than 1.5, as the glossiness of materials is set considering PBR.