diff --git a/common/common.go b/common/common.go
index ce32505267412..c5eb15566760a 100644
--- a/common/common.go
+++ b/common/common.go
@@ -273,8 +273,6 @@ const (
 	EnvEventReporterReplicas = "EVENT_REPORTER_REPLICAS"
 	// EnvEventReporterShard is the shard number that should be handled by reporter
 	EnvEventReporterShard = "EVENT_REPORTER_SHARD"
-	// EnvEventReporterDetailedMetrics is bool value that enables sending details metrics with resource kind, app names, etc.
-	EnvEventReporterDetailedMetrics = "EVENT_REPORTER_DETAILED_METRICS"
 )
 
 // Config Management Plugin related constants
diff --git a/event_reporter/metrics/metrics.go b/event_reporter/metrics/metrics.go
index 290a65dbf6eeb..0c7861b28589f 100644
--- a/event_reporter/metrics/metrics.go
+++ b/event_reporter/metrics/metrics.go
@@ -2,9 +2,7 @@ package metrics
 
 import (
 	"fmt"
-	argocommon "github.com/argoproj/argo-cd/v2/common"
 	"github.com/argoproj/argo-cd/v2/event_reporter/sharding"
-	"github.com/argoproj/argo-cd/v2/util/env"
 	"net/http"
 	"strconv"
 	"time"
@@ -18,7 +16,6 @@ import (
 type MetricsServer struct {
 	*http.Server
 	shard                            string
-	detailedMetricsEnabled           bool
 	redisRequestCounter              *prometheus.CounterVec
 	redisRequestHistogram            *prometheus.HistogramVec
 	queueSizeCounter                 *prometheus.GaugeVec
@@ -28,8 +25,6 @@ type MetricsServer struct {
 	eventProcessingDurationHistogram *prometheus.HistogramVec
 }
 
-const notDetailedMetricPlaceholderLabel = "not_reported"
-
 type MetricEventType string
 
 const (
@@ -94,10 +89,10 @@ var (
 	eventProcessingDurationHistogram = prometheus.NewHistogramVec(
 		prometheus.HistogramOpts{
 			Name:    "cf_e_reporter_event_processing_duration",
-			Help:    "Event processing duration.",
+			Help:    "Application event processing duration.",
 			Buckets: []float64{0.1, 0.25, .5, 1, 2, 3, 4, 5, 7, 10, 15, 20},
 		},
-		[]string{"reporter_shard", "application", "kind", "metric_event_type"},
+		[]string{"reporter_shard", "application", "metric_event_type"},
 	)
 )
 
@@ -122,7 +117,6 @@ func NewMetricsServer(host string, port int) *MetricsServer {
 	registry.MustRegister(eventProcessingDurationHistogram)
 
 	shard := sharding.GetShardNumber()
-	detailedMetrics := env.ParseBoolFromEnv(argocommon.EnvEventReporterDetailedMetrics, false)
 
 	return &MetricsServer{
 		Server: &http.Server{
@@ -130,7 +124,6 @@ func NewMetricsServer(host string, port int) *MetricsServer {
 			Handler: mux,
 		},
 		shard:                            strconv.FormatInt(int64(shard), 10),
-		detailedMetricsEnabled:           detailedMetrics,
 		queueSizeCounter:                 queueSizeCounter,
 		appEventsCounter:                 appEventsCounter,
 		erroredEventsCounter:             erroredEventsCounter,
@@ -164,10 +157,6 @@ func (m *MetricsServer) IncCachedIgnoredEventsCounter(metricEventType MetricEven
 	m.cachedIgnoredEventsCounter.WithLabelValues(m.shard, string(metricEventType), application).Inc()
 }
 
-func (m *MetricsServer) ObserveEventProcessingDurationHistogramDuration(application string, managedResourceKind string, metricEventType MetricEventType, duration time.Duration) {
-	if m.detailedMetricsEnabled {
-		m.eventProcessingDurationHistogram.WithLabelValues(m.shard, application, managedResourceKind, string(metricEventType)).Observe(duration.Seconds())
-	} else {
-		m.eventProcessingDurationHistogram.WithLabelValues(m.shard, notDetailedMetricPlaceholderLabel, notDetailedMetricPlaceholderLabel, string(metricEventType)).Observe(duration.Seconds())
-	}
+func (m *MetricsServer) ObserveEventProcessingDurationHistogramDuration(application string, metricEventType MetricEventType, duration time.Duration) {
+	m.eventProcessingDurationHistogram.WithLabelValues(m.shard, application, string(metricEventType)).Observe(duration.Seconds())
 }
diff --git a/event_reporter/reporter/application_event_reporter.go b/event_reporter/reporter/application_event_reporter.go
index c8075f332fd25..01a647a9caf8b 100644
--- a/event_reporter/reporter/application_event_reporter.go
+++ b/event_reporter/reporter/application_event_reporter.go
@@ -39,8 +39,6 @@ var (
 	resourceEventCacheExpiration = time.Minute * time.Duration(env.ParseNumFromEnv(argocommon.EnvResourceEventCacheDuration, 20, 0, math.MaxInt32))
 )
 
-const ApplicationKind = "Application"
-
 type applicationEventReporter struct {
 	cache                    *servercache.Cache
 	codefreshClient          codefresh.CodefreshClient
@@ -220,7 +218,7 @@ func (s *applicationEventReporter) StreamApplicationEvents(
 			return err
 		}
 		reconcileDuration := time.Since(startTime)
-		s.metricsServer.ObserveEventProcessingDurationHistogramDuration(a.Name, ApplicationKind, metrics.MetricChildAppEventType, reconcileDuration)
+		s.metricsServer.ObserveEventProcessingDurationHistogramDuration(a.Name, metrics.MetricChildAppEventType, reconcileDuration)
 	} else {
 		logCtx.Info("processing as root application")
 		// will get here only for root applications (not managed as a resource by another application)
@@ -241,7 +239,7 @@ func (s *applicationEventReporter) StreamApplicationEvents(
 			return fmt.Errorf("failed to send event for root application %s/%s: %w", a.Namespace, a.Name, err)
 		}
 		reconcileDuration := time.Since(startTime)
-		s.metricsServer.ObserveEventProcessingDurationHistogramDuration(a.Name, ApplicationKind, metrics.MetricParentAppEventType, reconcileDuration)
+		s.metricsServer.ObserveEventProcessingDurationHistogramDuration(a.Name, metrics.MetricParentAppEventType, reconcileDuration)
 	}
 
 	revisionMetadata, _ := s.getApplicationRevisionDetails(ctx, a, getOperationRevision(a))
@@ -256,14 +254,11 @@ func (s *applicationEventReporter) StreamApplicationEvents(
 			s.metricsServer.IncCachedIgnoredEventsCounter(metrics.MetricResourceEventType, a.Name)
 			continue
 		}
-		startTime := time.Now()
 		err := s.processResource(ctx, rs, a, logCtx, ts, desiredManifests, appTree, manifestGenErr, nil, revisionMetadata, appInstanceLabelKey, trackingMethod, nil)
 		if err != nil {
 			s.metricsServer.IncErroredEventsCounter(metrics.MetricResourceEventType, metrics.MetricEventUnknownErrorType, a.Name)
 			return err
 		}
-		reconcileDuration := time.Since(startTime)
-		s.metricsServer.ObserveEventProcessingDurationHistogramDuration(a.Name, rs.Kind, metrics.MetricResourceEventType, reconcileDuration)
 	}
 	return nil
 }