diff --git a/perf/benchmarks/insert-text-normal/index.js b/perf/benchmarks/insert-text-normal/index.js
new file mode 100644
index 000000000..bbec3fc82
--- /dev/null
+++ b/perf/benchmarks/insert-text-normal/index.js
@@ -0,0 +1,14 @@
+
+module.exports = {
+  setup(state) {
+    // Move cursor
+    return state.transform()
+      .collapseToStartOf({ key: '_cursor_' })
+      .moveForward(10) // Move inside the text
+      .apply()
+  },
+
+  run(state) {
+    return state.transform().insertText('a').apply()
+  }
+}
diff --git a/perf/benchmarks/insert-text-normal/input.yaml b/perf/benchmarks/insert-text-normal/input.yaml
new file mode 100644
index 000000000..8b04d1a3a
--- /dev/null
+++ b/perf/benchmarks/insert-text-normal/input.yaml
@@ -0,0 +1,41 @@
+nodes:
+- kind: block
+  type: paragraph
+  nodes:
+  - kind: text
+    ranges:
+    - text: 'This is editable '
+    - text: 'rich'
+      marks:
+      - type: bold
+    - text: ' text, '
+    - text: 'much'
+      marks:
+      - type: italic
+    - text: ' better than a '
+    - text: '<textarea>'
+      marks:
+      - type: code
+    - text: '!'
+- kind: block
+  key: _cursor_
+  type: paragraph
+  nodes:
+  - kind: text
+    ranges:
+    - text: 'Since it''s rich text, you can do things like turn a selection of text '
+    - text: 'bold'
+      marks:
+      - type: bold
+    - text: ', or add a semantically rendered block quote in the middle of the page,
+        like this:'
+- kind: block
+  type: block-quote
+  nodes:
+  - kind: text
+    text: 'A wise quote.'
+- kind: block
+  type: paragraph
+  nodes:
+  - kind: text
+    text: 'Try it out for yourself!'
diff --git a/perf/index.js b/perf/index.js
index 470deaeff..10497782e 100644
--- a/perf/index.js
+++ b/perf/index.js
@@ -29,7 +29,7 @@ const DEFAULT_BENCHMARK = {
 
 const BENCHMARK_OPTIONS = {
   // To ensure a better accuracy, force a minimum number of samples
-  minSamples: 50 // default 10
+  minSamples: 80 // default 10
 }
 
 // Because BenchmarkJS does not support scoped variables well, use
@@ -210,7 +210,7 @@ function exists(filepath) {
 
 function save(results, path) {
   path = resolve(process.cwd(), path)
-  fs.writeFileSync(path, JSON.stringify(results))
+  fs.writeFileSync(path, JSON.stringify(results, null, 2))
 }
 
 function serializeResult(event) {