diff --git a/Makefile b/Makefile
index c9ae4493ddacc2edbd9bdbe7c874b7d48a768b75..39c936f437e87e4e6f58a28dd4a1d3c2ebd886f0 100644
--- a/Makefile
+++ b/Makefile
@@ -132,7 +132,7 @@ LDFLAGS  += -Wl,-dead_strip
 endif
 endif
 
-OPTIM    ?= 0
+OPTIM    ?= 3
 CFLAGS   += -O$(OPTIM)
 
 CFLAGS   += $(foreach DIR,$(SRC_DIRS),-I$(DIR))