Chair Romani Bs1450-wb:
600 x 575 x H 805 mm
https://dg-home.ru/catalog/stulya/stul_obedennyy_seryy_glyantsevoe_zoloto_romani_bs1450_wb/ 

Without Turbosmooth modifier:
Polys: 3,804
Verts: 3,830
With Turbosmooth iterations 2 modifier:
Polys: 121 184
Verts: 60,796

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.