Assuming you are referring to the SMTP notifications? Those are statically polling every 10 seconds with an additional 10 second soaking period for any new alarms to show up. The only user configurable settings for the SMTP alarms are the destination and severity category (critical/info etc).
The Intersight powershell or python sdks (https://intersight.com/apidocs/downloads/) would probably be the easiest methods to run on a cron job and filter out faults you are not concerned with and then forward the remaining faults to email/webex room/incident management software etc..
Powershell would be Get-IntersightCondAlarm cmdlet and then adding a -Filter parameter for specific severities/fault codes etc that you were interested in
