diff --git a/jasmine.json b/jasmine.json
deleted file mode 100644
index c2728eef..00000000
--- a/jasmine.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "spec_dir": "test",
-  "spec_files": [
-    "**/*-spec.js"
-  ],
-  "helpers": [
-    "helpers/helpers.js"
-  ],
-  "jsLoader": "import",
-  "stopSpecOnExpectationFailure": false,
-  "random": true
-}
diff --git a/test/bench.js b/test/bench.js
index d7455215..a368c703 100644
--- a/test/bench.js
+++ b/test/bench.js
@@ -118,6 +118,13 @@ export async function bench(tests, specs) {
     const percent = ((stats[name].correct / specs.length) * 100).toFixed(2);
     console.log(`${name} completed in ${ms}ms and passed ${percent}%`);
   }
+
+  const percentSlower = ((
+    prettyElapsedTime(stats['esm marked'].elapsed)
+    / prettyElapsedTime(stats.commonmark.elapsed)
+  ) - 1) * 100;
+
+  console.log(`${Math.round(percentSlower)}% slower than commonmark`);
 }
 
 /**