diff --git a/tools/pyboard.py b/tools/pyboard.py
index 4032202402..223f3be16f 100755
--- a/tools/pyboard.py
+++ b/tools/pyboard.py
@@ -66,7 +66,7 @@ class Pyboard:
                 timeout_count += 1
                 if timeout is not None and timeout_count >= 10 * timeout:
                     break
-                time.sleep(0.1)
+                time.sleep(0.01)
         return data
 
     def enter_raw_repl(self):