Depends on what kind of work it is - if it's experimental, one time exploration, it's ok to be hacky. If it's a product intended for release and has a long life

Depends on what kind of work it is - if it's experimental, one time exploration, it's ok to be hacky. If it's a product intended for release and has a long life or intensive compute usage, then it's better to spend the time to make it right. Don't do premature optimisation!