Dining chair Blansh:
550 x 565 x H 835 mm
https://www.pointernety.ru/product/stul-obedennyy-blansh-bs2348-bg-bezhevyy/ 

Without Turbosmooth modifier:
Poly: 5,200
Verts: 5292
With Turbosmooth iterations 2 modifier:
Polys: 164,416
Verts: 83,036

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.