Kaira Chair:
865 x 900 x H 895 mm
https://samara.inmyroom.ru/products/1985246-stul-kaira-sero-zelenogo-cveta 


Without Turbosmooth modifier:
Polys: 2,762
Verts: 2,830
With Turbosmooth iterations 2 modifier:
Polys: 88,416
Verts: 44,490

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.