Alteryx is very quick already but it world be useful to know the computational cost of different approaches to building a workflow using a lot of data. This would make it easier to know if your optimization to the workflow is working as expected and also which tools in particular are doing the work best. Other software such as Power BI has a performance analysis section which breaks down how each action impacted performance.
It would be great to get a similar breakdown of how long each tool is taking to run in the results window.