Hello James first please take a look at:
Detailed guidelines on how to accurately determine which edition of QlikView Expressor is appropriate for your deployment. This document examines analyzing data flows for optimal performance; assessing the size of dataflow complexity; and writing to databases with partitions.
Let us know how you do.
Thanks for the document Michael, very useful for the performance aspect.
I would still like to know if there are any specific best practices for the operators them selves, the document mentioned that a workflow would typically have 8 or less operators. Is there some further documentation on workflow design practices?