[Black Leviathan]

You can't bring a pot to a boil faster by watching it closer. Ultimately there are some limitations that can't be overcome by skill. You could multi-task to create very large batches of goods in drastically shorter time, but no amount of skill is going to let you boil a minute egg in 20 seconds. I'd say realistically unless a task involves a planning and organizing process the time-reduction should be capped at Level 21 or so. Above that and you can just work down penalties for poor tools or very large batches.