Software Deployment

I have been a Wise Studio user for sometime, and have being using Installshield Devstudio (increasingly more so) over the past months. It's a brilliant tool, but then again I am quite happy with Wise Studio as well. I do however have one very urgent question: How can one make Devstudio (Installshield Adminstudio) perform faster/better/more responsively?
When editing an msi package using Devstudio it is by far much slower (and less responsive) than using Wise Studio to edit the same msi package. As a result it takes me 10x as longer to finish a package off.
Any comments? Anyone......?[8|]