Thank you for reaching out on the Redgate Forums and asking about some performance concerns with SQL Monitor.
Are you able to provide some more insight into how you have SQL Monitor setup,
Are you using the MI as a data repo / monitored environment - or both?
Can you please confirm the resources usage by SQL Monitor?
I don't believe we have actual guideline values for Azure MI but we do have some details around Azure SQL & elastic pools which can be viewed at the link below
SQL Monitor Infrastructure - hardware & performance guidelines
Can you review and verify that your system hardware meets the recommendations?
Tips and how-to guides for Redgate products
Ask, discuss, and solve questions about Redgate's tools
Meet us at an event, get sponsored, and join our Friends of Redgate
In-depth articles and opinion from Redgate's technical journal