Low performance with dynamically built cube map

Hello guys

I have some performance issues with my dynamically/randomly generated map built of cubes. I managed to render the surface cubes only and not a solid big block with cubes who never ever could be seen. This gave me a lot more FPS. But still, I got around 15FPS in the middle of the map.
I now need some tips how it’s possible to improve the performance.
I’m working on this since a very long time.
Someone able to help me? I would appreciate it.

(if you need code or more information, I’ll upload it if you ask for it)

Kind regards
Martin

If I understand correctly, you’re making a map build of cubes. A cube map is a type of texture.

There’s a lot of tips and general information in this thread: After playing minecraft... - Industries - News & General Discussion - Unity Discussions

Good luck reading through it.