What about the third approach, find another existing library that provides similar functionality but is faster? Or fourth approach, pay for faster hardware (ch

What about the third approach, find another existing library that provides similar functionality but is faster? Or fourth approach, pay for faster hardware (cheaper than your time, usually!). Or fifth approach, refactor the code and submit a change request? Even if they are not interested in doing the work, maybe they'll accept it. Probably other approaches you can take as well.