I recently acquired an older M-class star, roughly 4.6 billion years old, to use as a power source for Bitcoin mining. My current setup should be able to collect 99.87% of its photonic and thermal output.

The problem is the previous owners basically abandoned it so lots of heavy elements have been allowed to clog up its stellar engine (likely why no one wanted it). Any tips and tricks to lift these these heavy elements from the hydrogen bring this old star back to its former glory?