Business Monitors error out with 502Badgateway

Summary:

We have business monitor with 15 saved queries in it. When user opens the business monitor the screen spins for 5mins and then timesout with 503 badgateway error. If we individually execute these queries in finder set then each of the queries are returning results in couple of seconds. Is there any additional logic for business monitors because of which the timeout happens?

Content (required):

Is there any limit on the number of queries what you can have on business monitors? which might be impacting the performance

Version (include the version you are using, if applicable):

23B

Code Snippet (add any code snippets that support your topic, if applicable):