Pico - Out of Memory! with a Module

Hi,

I'm new to the forum and to Espruino Pico. I've been working on a module that is now about 20K minimized (closure - simple). I started to get EEROR: Out of Memory! if I add more prototypes. I'm not very familiar with how the Pico memory works and if there is any option to keep adding more prototypes to the module instead of moving some of the prototypes to the main code. That last option seems to work, but it is not the best choice for me.

In case it helps...

process.memory()
={ "free": 4963, "usage": 137, "total": 5100, "history": 1858,
"stackEndAddress": 536959420, "flash_start": 134217728, "flash_binary_end": 376280, "flash_code_start": 134234112, "flash_length": 393216 }

Thanks,
Gabe