If you have reports running slowly, it is worth checking the following:
Check internet connection or bandwidth, or if internet was disconnected.
Try testing with an admin account.
If after testing with admin account and issue remains check with your own IT team to see if there are any issues.
If you are still experiencing issues, and your IT team are not registering any issues, please raise a new case online and reference the title of this article. Please include the report name and the criteria you are using to run the report.