diff --git a/charts/vela-core/README.md b/charts/vela-core/README.md
index 32b09f6ee..92c01e367 100644
--- a/charts/vela-core/README.md
+++ b/charts/vela-core/README.md
@@ -115,7 +115,7 @@ helm install --create-namespace -n vela-system kubevela kubevela/vela-core --wai
 | `multicluster.clusterGateway.replicaCount`                  | ClusterGateway replica count                                                                | `1`                              |
 | `multicluster.clusterGateway.port`                          | ClusterGateway port                                                                         | `9443`                           |
 | `multicluster.clusterGateway.image.repository`              | ClusterGateway image repository                                                             | `oamdev/cluster-gateway`         |
-| `multicluster.clusterGateway.image.tag`                     | ClusterGateway image tag                                                                    | `v1.8.0-alpha.3`                 |
+| `multicluster.clusterGateway.image.tag`                     | ClusterGateway image tag                                                                    | `v1.8.0`                         |
 | `multicluster.clusterGateway.image.pullPolicy`              | ClusterGateway image pull policy                                                            | `IfNotPresent`                   |
 | `multicluster.clusterGateway.resources.requests.cpu`        | ClusterGateway cpu request                                                                  | `50m`                            |
 | `multicluster.clusterGateway.resources.requests.memory`     | ClusterGateway memory request                                                               | `20Mi`                           |
@@ -153,8 +153,8 @@ helm install --create-namespace -n vela-system kubevela kubevela/vela-core --wai
 | `logDebug`                    | Enable debug logs for development purpose                                                                                                                          | `false`              |
 | `logFilePath`                 | If non-empty, write log files in this path                                                                                                                         | `""`                 |
 | `logFileMaxSize`              | Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited.                                         | `1024`               |
-| `kubeClient.qps`              | The qps for reconcile clients, default is 100                                                                                                                      | `100`                |
-| `kubeClient.burst`            | The burst for reconcile clients, default is 200                                                                                                                    | `200`                |
+| `kubeClient.qps`              | The qps for reconcile clients                                                                                                                                      | `400`                |
+| `kubeClient.burst`            | The burst for reconcile clients                                                                                                                                    | `600`                |
 | `authentication.enabled`      | Enable authentication for application                                                                                                                              | `false`              |
 | `authentication.withUser`     | Application authentication will impersonate as the request User                                                                                                    | `true`               |
 | `authentication.defaultUser`  | Application authentication will impersonate as the User if no user provided in Application                                                                         | `kubevela:vela-core` |
diff --git a/charts/vela-core/values.yaml b/charts/vela-core/values.yaml
index efd11ca03..5a1315a3a 100644
--- a/charts/vela-core/values.yaml
+++ b/charts/vela-core/values.yaml
@@ -158,7 +158,7 @@ multicluster:
     port: 9443
     image:
       repository: oamdev/cluster-gateway
-      tag: v1.8.0-alpha.3
+      tag: v1.8.0
       pullPolicy: IfNotPresent
     resources:
       requests:
@@ -266,11 +266,11 @@ admissionWebhooks:
     enabled: false
     revisionHistoryLimit: 3
 
-## @param kubeClient.qps The qps for reconcile clients, default is 100
-## @param kubeClient.burst The burst for reconcile clients, default is 200
+## @param kubeClient.qps The qps for reconcile clients
+## @param kubeClient.burst The burst for reconcile clients
 kubeClient:
-  qps: 100
-  burst: 200
+  qps: 400
+  burst: 600
 
 ## @param authentication.enabled Enable authentication for application
 ## @param authentication.withUser Application authentication will impersonate as the request User
diff --git a/pkg/monitor/metrics/application.go b/pkg/monitor/metrics/application.go
index 0dbd2d619..a80a43189 100644
--- a/pkg/monitor/metrics/application.go
+++ b/pkg/monitor/metrics/application.go
@@ -55,12 +55,6 @@ var (
 		ConstLabels: prometheus.Labels{},
 	}, []string{"phase"})
 
-	// WorkflowInitializedCounter report the workflow initialize execute number.
-	WorkflowInitializedCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
-		Name: "workflow_initialized_num",
-		Help: "workflow initialize times",
-	}, []string{})
-
 	// ApplicationPhaseCounter report the number of application phase
 	ApplicationPhaseCounter = prometheus.NewGaugeVec(prometheus.GaugeOpts{
 		Name: "application_phase_number",
@@ -81,11 +75,3 @@ var (
 		Help: "list resourceTrackers times.",
 	}, []string{"controller"})
 )
-
-var (
-	// ResourceTrackerNumberGauge report the number of resourceTracker
-	ResourceTrackerNumberGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
-		Name: "resourcetracker_number",
-		Help: "resourceTracker number.",
-	}, []string{"controller"})
-)
diff --git a/pkg/monitor/metrics/workflow.go b/pkg/monitor/metrics/workflow.go
index e133568be..a2d41136b 100644
--- a/pkg/monitor/metrics/workflow.go
+++ b/pkg/monitor/metrics/workflow.go
@@ -38,10 +38,8 @@ var collectorGroup = []prometheus.Collector{
 	ApplicationReconcileTimeHistogram,
 	ApplyComponentTimeHistogram,
 	WorkflowFinishedTimeHistogram,
-	WorkflowInitializedCounter,
 	ApplicationPhaseCounter,
 	WorkflowStepPhaseGauge,
-	ResourceTrackerNumberGauge,
 	ClusterIsConnectedGauge,
 	ClusterWorkerNumberGauge,
 	ClusterMasterNumberGauge,