diff --git a/test/Struct.test.js b/test/Struct.test.js
index 761a5fb..3019285 100644
--- a/test/Struct.test.js
+++ b/test/Struct.test.js
@@ -64,15 +64,33 @@ describe(Struct.name, () => {
     0x00, 0x00, 0x00, 0x05, // user.name.size
     0x68, 0x65, 0x6C, 0x6C, 0x6F, // user.name.data
   ])
+  let nested_json
 
   test('serialize, nested', () => {
+    let start = process.hrtime.bigint()
     const dv = sizedDataView(sizeof(nested, Nested))
     serialize(dv, nested, Nested)
+    const delta_serialize = process.hrtime.bigint() - start
+
+    start = process.hrtime.bigint()
+    nested_json = JSON.stringify(nested)
+    const delta_json = process.hrtime.bigint() - start
+
+    console.log(`Struct, nested: serialize ns: ${delta_serialize}, JSON.stringify ns: ${delta_json}`)
     expectDataViewEqual(dv, nested_dv)
   })
 
   test('parse, nested', () => {
-    expectDataViewEqual(parse(nested_dv, Nested), nested)
+    let start = process.hrtime.bigint()
+    const actual = parse(nested_dv, Nested)
+    const delta_serialize = process.hrtime.bigint() - start
+
+    start = process.hrtime.bigint()
+    const json = JSON.parse(nested_json)
+    const delta_json = process.hrtime.bigint() - start
+
+    console.log(`Struct, nested: parse ns: ${delta_serialize}, JSON.parse ns: ${delta_json}`)
+    expectDataViewEqual(actual, nested)
   })
 
   const Token = Struct({