Chair Argenti:
1080 x 815 x H 1050 mm
https://toriani.ru/catalog/kresla/kreslo_argenti_art_2000983240040/ 

Without Turbosmooth modifier:
Polys: 12 545
Verts: 13 283
With Turbosmooth modifier iterations 2:
Polys: 403 968
Verts: 204 256

Displacement map is used;
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 configured with PBR in mind.