diff --git a/Makefile b/Makefile
index f0f98e5..ee6f4e6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 EXTRA_CFLAGS += $(USER_EXTRA_CFLAGS)
-EXTRA_CFLAGS += -O1
+EXTRA_CFLAGS += -O2
 #EXTRA_CFLAGS += -O3
 #EXTRA_CFLAGS += -Wall
 #EXTRA_CFLAGS += -Wextra
@@ -77,7 +77,7 @@ CONFIG_80211W = y
 CONFIG_REDUCE_TX_CPU_LOADING = n
 CONFIG_BR_EXT = y
 CONFIG_TDLS = n
-CONFIG_WIFI_MONITOR = n
+CONFIG_WIFI_MONITOR = y
 CONFIG_MCC_MODE = n
 CONFIG_APPEND_VENDOR_IE_ENABLE = n
 CONFIG_RTW_NAPI = y
@@ -102,7 +102,7 @@ endif
 CONFIG_RTW_DEBUG = y
 # default log level is _DRV_INFO_ = 4,
 # please refer to "How_to_set_driver_debug_log_level.doc" to set the available level.
-CONFIG_RTW_LOG_LEVEL = 4
+CONFIG_RTW_LOG_LEVEL = 3
 
 # enable /proc/net/rtlxxxx/ debug interfaces
 CONFIG_PROC_DEBUG = y
@@ -1333,7 +1333,7 @@ ifeq ($(CONFIG_PLATFORM_I386_PC), y)
 EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
 EXTRA_CFLAGS += -DCONFIG_IOCTL_CFG80211 -DRTW_USE_CFG80211_STA_EVENT
 
-SUBARCH := $(shell uname -m | sed -e s/i.86/i386/)
+SUBARCH := $(shell uname -m | sed -e 's/i.86/i386/;s/armv7l/arm/;s/aarch64/arm64/')
 ARCH ?= $(SUBARCH)
 CROSS_COMPILE ?=
 KVER  := $(shell uname -r)