Why my draw calls very high on a single mesh ?? Please help.

Here’s a problem, I only have single model in level but “Mesh Draw Calls” are very high around 100-130.

And empty level with single terrain “Mesh Draw Call” will around 50-60.

Too Many “Mesh Draw Call” will hurt game performance right ?

This is model setting in blender

7 Materials, Can’t bake texture because a texture will become very blurrr…

My texture resolution is 1024x1024.

Can i use 7 materials per object? but some object use same material. This will hurt game performance or not ?

You could probably put the shutters, door, window on one atlas texture.

Ok atlas texture i’ll try it now thank you, And What about “Mesh Draw Call” is it safe ??