You can set system resource limits that apply when running reports and exporting report data. These resource limits specify the maximum number of rows to retrieve, the maximum elapsed time (in seconds) for the database query, and the number of rows to export at a time.
You can view the current system-wide resource limits on the Settings tab of the Reporting Settings landing page. You can update these system-wide settings, or you can specify resource limits for a particular report or for reports within a particular class.
In the Resource limits when running reports and Resource limits when exporting data from reports sections, you can update the following settings:
You might need to log out and log in again for the changes to take effect.