diff --git a/nson/nson.go b/nson/nson.go
index b3d0ce8..87be2cc 100644
--- a/nson/nson.go
+++ b/nson/nson.go
@@ -105,7 +105,7 @@ func Unmarshal(data string, evt *nostr.Event) (err error) {
 	return err
 }
 
-func Marshal(evt nostr.Event) (string, error) {
+func Marshal(evt *nostr.Event) (string, error) {
 	// start building the nson descriptors (without the first byte that represents the nson size)
 	nsonBuf := make([]byte, 256)
 
diff --git a/nson/nson_test.go b/nson/nson_test.go
index 120e2fe..1b1d5ea 100644
--- a/nson/nson_test.go
+++ b/nson/nson_test.go
@@ -53,7 +53,7 @@ func TestNsonEncode(t *testing.T) {
 		if err := json.Unmarshal([]byte(jevt), pevt); err != nil {
 			t.Fatalf("failed to decode normal json: %s", err)
 		}
-		nevt, err := Marshal(*pevt)
+		nevt, err := Marshal(pevt)
 		if err != nil {
 			t.Fatalf("failed to encode nson: %s", err)
 		}
@@ -145,3 +145,88 @@ var normalEvents = []string{
 	`{"id":"e2aec1b7e297329203f67b61f214c2b745a3bc1590f299ca250a1633714c829c","pubkey":"b6ac413652c8431478cb6177722f822f0f7af774a274fc5574872407834c3253","created_at":1688553478,"kind":1,"tags":[],"content":"やー今日も疲れたなー！\n大将！お勧めでイソシアネートとポリオールね！\nあ、6:4でよろしく！","sig":"12ba5dc9ff18f4ce995941f6de3bfaf8e3636afde37a06a4d3478c930ae22e2f79690e6f0682d532541222746aeb5f6dda29251cd7c31e71d7e206199b04bab4"}`,
 	`{"id":"e4e86256ed64514bcb3350cf8b631ef84b4aeafcdb164cea5096c893ead6a0a1","pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","created_at":1688574304,"kind":1,"tags":[],"content":"\b\f\ueeee","sig":"c61a4971facc4899109e1a28b73cbd27f8807fedcff87cfa1d8f5e9b709feab75e3a62a96fc75b5d2a2f42443d5ca35daa6c3d724cd6e6133b9c4a1ef072c1e9"}`,
 }
+
+func BenchmarkNSONEncoding(b *testing.B) {
+	events := make([]*nostr.Event, len(normalEvents))
+	for i, jevt := range normalEvents {
+		evt := &nostr.Event{}
+		json.Unmarshal([]byte(jevt), evt)
+		events[i] = evt
+	}
+
+	b.Run("json.Marshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, evt := range events {
+				json.Marshal(evt)
+			}
+		}
+	})
+
+	b.Run("nson.Marshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, evt := range events {
+				Marshal(evt)
+			}
+		}
+	})
+}
+
+func BenchmarkNSONDecoding(b *testing.B) {
+	events := make([]string, len(normalEvents))
+	for i, jevt := range normalEvents {
+		evt := &nostr.Event{}
+		json.Unmarshal([]byte(jevt), evt)
+		nevt, _ := Marshal(evt)
+		events[i] = nevt
+	}
+
+	b.Run("json.Unmarshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, nevt := range events {
+				evt := &nostr.Event{}
+				err := json.Unmarshal([]byte(nevt), evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+			}
+		}
+	})
+
+	b.Run("nson.Unmarshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, nevt := range events {
+				evt := &nostr.Event{}
+				err := Unmarshal(nevt, evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+			}
+		}
+	})
+
+	b.Run("json.Unmarshal + sig verification", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, nevt := range events {
+				evt := &nostr.Event{}
+				err := json.Unmarshal([]byte(nevt), evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+				evt.CheckSignature()
+			}
+		}
+	})
+
+	b.Run("nson.Unmarshal + sig verification", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, nevt := range events {
+				evt := &nostr.Event{}
+				err := Unmarshal(nevt, evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+				evt.CheckSignature()
+			}
+		}
+	})
+}