diff --git a/platformio.ini b/platformio.ini
index cc8991d..cfbfa82 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -14,3 +14,4 @@ board = upesy_wroom
 framework = arduino
 monitor_speed = 115200
 lib_deps = adafruit/Adafruit SSD1306@^2.5.9
+build_flags = -O2
\ No newline at end of file