Many people don't start with Python for speed. They are exactly like you - they write a script that is done in few seconds. Then the data scales, then it takes

Many people don't start with Python for speed. They are exactly like you - they write a script that is done in few seconds. Then the data scales, then it takes a few minutes. Then you need it to be faster, and now you either need to rewrite the script. It would be helpful if you didn't need to make this choice.