3D Warehouse low fps

Hello everyone! I have problems with my 3D warehouse (low fps count). I have some rack <- box. And I need to change the color of each box (a total of 7 colors) and put text in each box. (It is task - change material with text on the box) But I have ~ 700 ranks and ~50 boxes per rack in one scene. There are ~35000 boxes in my room. And each box also has a 2 tmpro text.

And playerloop in profiler 37ms. I use StaticBatchingUtility.Combine(ranks.gameObject), whatever it didn't help, occlusion culling is memory-consuming.

Can I improve the fps count for this task? Thanks!