If you notice that BQE CORE is running very slow in your browser, you can try logging out of CORE and clearing the cache of your browser. Sometimes that can help resolve browser-related issues.
If you believe the CORE servers are down or if you experience any performance issues, you can report it on CORE Community or call Technical Support. As an alternative, you can check the CORE Status site (https://status.bqecore.com) for information about any scheduled maintenance going on or if there are any unexpected issues or outages. You can subscribe to the updates and stay tuned.