This article talks about the load monitoring feature.  I don't think it is turned on by default, so you might have to ask support to turn it on for you. https://documentation.meraki.com/MX-Z/Monitoring_and_Reporting/Load_Monitoring   On the whole you never have performance issues with Meraki MX kit as long as you stay within the sizing guidelines. https://meraki.cisco.com/products/appliances#models ... View more