diff --git a/platformio.ini b/platformio.ini
index b7f68fd..4217799 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -93,6 +93,7 @@ build_flags =
 	-D CORE_DEBUG_LEVEL=4
 	-D register=
 	-std=gnu++2a
+    -O3
 build_unflags = -std=gnu++11
 build_src_flags = 
 	-Wformat=2