Unity (as most other game engines) is a fine example of bloa.. No, it's wrong text.
Fuck dev.. No, it's from other story too.
Here i admit that modern 18-core GPU with ~1GHZ clock frequency can't render a thousand of squares (not including ui which must not be redrawn each frame tbh) more than two times per second with modern software (it's about what's uploaded), and 2GB of free RAM is not enough to store and process 1600 expressions (48 ternaries, 48 float comparsions, some not-so-heavy functions like min and clamp in each) (it's about what it was originally), so i forced to upload (simplified 2d version of) build and ask someone with better computer to finish it.
For those who interested, i can send python code that generates 2.5d version (it's mostly str.replace with not-meaningfull-at-all names).
Well, i don't really know how much RAM must expressions use (i tried once, it used 1.5-2x more than expression length in symbols, but it used python's eval), but i think 2GB from <10MB xml file is too much.