diff --git a/Makefile b/Makefile
index 7557443d..f579e6d3 100644
--- a/Makefile
+++ b/Makefile
@@ -48,7 +48,7 @@ AR ?= $(CCPREFIX)ar
 PKG_CONFIG ?= pkg-config
 WX_CONFIG ?= wx-config
 PROTOC ?= protoc
-CFLAGS ?= -g -O0
+CFLAGS ?= -g -O3
 CXXFLAGS += -std=c++17
 LDFLAGS ?=
 PLATFORM ?= UNIX