diff --git a/app/vminsert/csvimport/request_handler.go b/app/vminsert/csvimport/request_handler.go
index 472bec359..05216f35e 100644
--- a/app/vminsert/csvimport/request_handler.go
+++ b/app/vminsert/csvimport/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/csvimport"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -30,6 +31,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 	defer netstorage.PutInsertCtx(ctx)
 
 	ctx.Reset() // This line is required for initializing ctx internals.
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -38,7 +40,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			tag := &r.Tags[j]
 			ctx.AddLabel(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/graphite/request_handler.go b/app/vminsert/graphite/request_handler.go
index 8760c2342..3aef526cf 100644
--- a/app/vminsert/graphite/request_handler.go
+++ b/app/vminsert/graphite/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"io"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/graphite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -34,6 +35,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 
 	ctx.Reset() // This line is required for initializing ctx internals.
 	atCopy := *at
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -52,7 +54,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			}
 			ctx.AddLabel(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/opentsdb/request_handler.go b/app/vminsert/opentsdb/request_handler.go
index 42ae8a538..74eda55bc 100644
--- a/app/vminsert/opentsdb/request_handler.go
+++ b/app/vminsert/opentsdb/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"io"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdb"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -34,6 +35,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 
 	ctx.Reset() // This line is required for initializing ctx internals.
 	atCopy := *at
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -52,7 +54,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			}
 			ctx.AddLabel(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/opentsdbhttp/request_handler.go b/app/vminsert/opentsdbhttp/request_handler.go
index 580a89e8f..44812120e 100644
--- a/app/vminsert/opentsdbhttp/request_handler.go
+++ b/app/vminsert/opentsdbhttp/request_handler.go
@@ -5,6 +5,7 @@ import (
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdbhttp"
@@ -51,6 +52,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 	defer netstorage.PutInsertCtx(ctx)
 
 	ctx.Reset() // This line is required for initializing ctx internals.
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -59,7 +61,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			tag := &r.Tags[j]
 			ctx.AddLabel(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/prometheusimport/request_handler.go b/app/vminsert/prometheusimport/request_handler.go
index 95421ba5a..ec62dda7c 100644
--- a/app/vminsert/prometheusimport/request_handler.go
+++ b/app/vminsert/prometheusimport/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -31,6 +32,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 	defer netstorage.PutInsertCtx(ctx)
 
 	ctx.Reset() // This line is required for initializing ctx internals.
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -39,7 +41,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			tag := &r.Tags[j]
 			ctx.AddLabel(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/promremotewrite/request_handler.go b/app/vminsert/promremotewrite/request_handler.go
index 435af23ed..318585993 100644
--- a/app/vminsert/promremotewrite/request_handler.go
+++ b/app/vminsert/promremotewrite/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/promremotewrite"
@@ -33,6 +34,7 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries) error {
 
 	ctx.Reset() // This line is required for initializing ctx internals.
 	rowsTotal := 0
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range timeseries {
 		ts := &timeseries[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -40,7 +42,9 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries) error {
 		for _, srcLabel := range srcLabels {
 			ctx.AddLabelBytes(srcLabel.Name, srcLabel.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue
diff --git a/app/vminsert/vmimport/request_handler.go b/app/vminsert/vmimport/request_handler.go
index 1489dfe48..d956d5ba8 100644
--- a/app/vminsert/vmimport/request_handler.go
+++ b/app/vminsert/vmimport/request_handler.go
@@ -4,6 +4,7 @@ import (
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/vmimport"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
@@ -34,6 +35,7 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 
 	ctx.Reset() // This line is required for initializing ctx internals.
 	rowsTotal := 0
+	hasRelabeling := relabel.HasRelabeling()
 	for i := range rows {
 		r := &rows[i]
 		ctx.Labels = ctx.Labels[:0]
@@ -41,7 +43,9 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 			tag := &r.Tags[j]
 			ctx.AddLabelBytes(tag.Key, tag.Value)
 		}
-		ctx.ApplyRelabeling()
+		if hasRelabeling {
+			ctx.ApplyRelabeling()
+		}
 		if len(ctx.Labels) == 0 {
 			// Skip metric without labels.
 			continue