diff --git a/Makefile b/Makefile
index ccf5a34..3a4e763 100644
--- a/Makefile
+++ b/Makefile
@@ -4,8 +4,8 @@ KERNEL_DIR	?= /usr/src/linux
 
 CC		:= $(CROSS_COMPILE)gcc
 KERNEL_INCLUDE	:= -I$(KERNEL_DIR)/include -I$(KERNEL_DIR)/arch/$(ARCH)/include
-CFLAGS		:= -W -Wall -g $(KERNEL_INCLUDE)
-LDFLAGS		:= -g
+CFLAGS    := -W -Wall -O3 $(KERNEL_INCLUDE)
+LDFLAGS   := -O3g
 
 all: uvc-gadget
 
diff --git a/multi-gadget.sh b/multi-gadget.sh
index 2fd474a..65cb8ed 100755
--- a/multi-gadget.sh
+++ b/multi-gadget.sh
@@ -28,7 +28,7 @@ ln -s /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/control/header/h /sys
 # For 720p:
 mkdir -p /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/720p
 cat <<EOF > /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/720p/dwFrameInterval
-5000000
+333333
 EOF
 cat <<EOF > /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/720p/wWidth
 1280
@@ -49,7 +49,7 @@ EOF
 # For 1080p:
 # mkdir -p /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/1080p
 # cat <<EOF > /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/1080p/dwFrameInterval
-# 5000000
+# 333333
 # EOF
 # cat <<EOF > /sys/kernel/config/usb_gadget/pi4/functions/uvc.usb0/streaming/mjpeg/m/1080p/wWidth
 # 1920
diff --git a/piwebcam b/piwebcam
index 5075169..172ce3e 100755
--- a/piwebcam
+++ b/piwebcam
@@ -12,4 +12,4 @@ sudo /home/pi/uvc-gadget/multi-gadget.sh
 # For 720p:
 sudo /home/pi/uvc-gadget/uvc-gadget -f1 -s1 -r0 -u /dev/video1 -v /dev/video0
 # For 1080p:
-# sudo /home/pi/uvc-gadget/uvc-gadget -f1 -s1 -r1 -u /dev/video1 -v /dev/video0
+#sudo /home/pi/uvc-gadget/uvc-gadget -f1 -s1 -r1 -u /dev/video1 -v /dev/video0