How to Prevent Automatic Queuing

You can prevent the automatic queuing of reports.

After a report is automatically queued, it's queued every time it runs thereafter, since it’s assumed the report’s filters and data set result in long run times.

Tip: To view reports that will be automatically queued when they're next run, you can run the Deferred Reports standard report. This report is in the Reports explorer’s Common > Site Administration > Reports folder.
If you have a report that's set to be queued, you can prevent it from being automatically queued when it's next run. However, you will still be asked to queue the report when you next run it if the report meets queuing criteria. See Change Report Queuing and Data Source Options for information about preventing automatic queuing for a standard report or Change Report Properties for information about changing queuing options for a custom report.
Tip: When you change queuing options for a custom report, we recommend that you also review the report’s fixed filters and table joins to determine if the amount of data the report examines can be reduced to allow it to run more quickly.