diff --git a/platformio.ini b/platformio.ini
index 4217799..b79d11a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -93,7 +93,10 @@ build_flags =
 	-D CORE_DEBUG_LEVEL=4
 	-D register=
 	-std=gnu++2a
-    -O3
+    -Ofast
+    -ffunction-sections 
+    -fdata-sections 
+    -Wl,--gc-sections
 build_unflags = -std=gnu++11
 build_src_flags = 
 	-Wformat=2