Hello there, @wpellis1. Thanks for the details. 

I have some steps for you that can help fix performance issues when using QuickBooks Statement Writer (QSW). Here's what you'll need to do:

1. Update QuickBooks Desktop to the latest release. 
2. Download the latest version of QSW.
3. Change the Windows settings.
4. Ensure that Excel is compatible. 
5. Change the way you access the .QSM file. 
6. Refresh QSW's access permission. 
7. Run the QuickBooks Statement Writer Diagnosis. 
8. Review the .log file. 
9. Edit the QBDSK.INI file. 

For detailed guidance on the process above, check this article: Fix problems with Statement Writer.

As always, reach back out to me if you have further questions about QuickBooks. I’d be happy to answer it for you. Take care.