QuickBooks running slow can be encountered by users for many reasons, kuehl87.

If it takes a longer time than the usual process, here are the possible reasons why this is happening.

• QuickBooks is not updated.
• The computer does not meet the minimum system requirements.
• Damaged or missing QBWUSER.INI file.
• Corrupted hard drive.
• Damaged program files or QuickBooks Desktop installation.
• Damaged Windows operating system

We can use the QuickBooks Diagnostic Tool to fix this issue. Here's how:

1. Download the QuickBooks Install DiagnosticTool.
2. Save the file to your local Desktop.
3. Close any open programs and run the QBInstall Tool.
4. Reboot the computer after running the tool to ensure the components are properly updated.

You can also follow the rest of the solution if you're still having issues with QuickBooks: What To Do If You Can Open QuickBooks.

Please let me know if you need any assistance. We're always here to help.