diff --git a/content/rancher/v2.5/en/monitoring-alerting/configuration/_index.md b/content/rancher/v2.5/en/monitoring-alerting/configuration/_index.md
index e56978fbb98..350c18172f2 100644
--- a/content/rancher/v2.5/en/monitoring-alerting/configuration/_index.md
+++ b/content/rancher/v2.5/en/monitoring-alerting/configuration/_index.md
@@ -15,6 +15,8 @@ For information on configuring custom scrape targets and rules for Prometheus, p
 
 The resource requests and limits for the monitoring application can be configured when installing `rancher-monitoring`. For more information about the default limits, see [this page.](./helm-chart-options/#configuring-resource-limits-and-requests)
 
+>**Warning:** On an idle cluster, Monitoring V2 has significantly higher CPU usage (up to 70%) as compared to Monitoring V1. 
+
 # Prometheus Configuration
 
 It is usually not necessary to directly edit the Prometheus custom resource.