[Android Software/Hacking General [Developers Only]] leolawliet:
I'll try yours now, I'll post my prop script & updater script here.

prop.sh

#!/system/bin/sh
busybox echo " " >> /system/build.prop
busybox echo "### PenberEngine Tweaks by LeoLawliet [MENTION=243864]xda[/MENTION]" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# GPU Tweaks" >> /system/build.prop
busybox echo "debug.egl.hw=1" >> /system/build.prop
busybox echo "debug.sf.hw=1" >> /system/build.prop
busybox echo "debug.composition.type=gpu" >> /system/build.prop
busybox echo "debug.performance.tuning=1" >> /system/build.prop
busybox echo "ro.config.disable.hw_accel=0" >> /system/build.prop
busybox echo "ro.sf.compbypass.enable=0" >> /system/build.prop
busybox echo "video.accelerate.hw=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# 3D performance" >> /system/build.prop
busybox echo "persist.android.strictmode=0" >> /system/build.prop
busybox echo "ro.min_pointer_dur=1" >> /system/build.prop
busybox echo "ro.secure=0" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Hardware 2D & 3D Rendering" >> /system/build.prop
busybox echo "hw3d.force=1" >> /system/build.prop
busybox echo "hw2d.force=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Fluid UI" >> /system/build.prop
busybox echo "persist.service.lgospd.enable=0" >> /system/build.prop
busybox echo "persist.service.pcsync.enable=0" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Enable harware egl profile" >> /system/build.prop
busybox echo "debug.egl.profiler=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Enable tile rendering" >> /system/build.prop
busybox echo "debug.enabletr=true" >> /system/build.prop
busybox echo "persist.sys.composition.type=gpu" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Graphic Optimization" >> /system/build.prop
busybox echo "debug.gr.numframebuffers=3" >> /system/build.prop
busybox echo "ro.min_pointer_dur=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# 16BIT Support" >> /system/build.prop
busybox echo "debug.fb.rgb565=1" >> /system/build.prop
busybox echo "# 16BIT Transparency" >> /system/build.prop
busybox echo "persist.sys.use_16bpp_alpha=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Rendering Tweaks (HW Rendering)" >> /system/build.prop
busybox echo "video.accelerate.hw=1" >> /system/build.prop
busybox echo "debug.performance.tuning=1" >> /system/build.prop
busybox echo "ro.config.disable.hw_accel=false" >> /system/build.prop
busybox echo "# Better Scrolling Responsiveness " >> /system/build.prop
busybox echo "windowsmgr.max_events_per_sec=90" >> /system/build.prop
busybox echo "ro.max.fling_velocity=15000" >> /system/build.prop
busybox echo "ro.min.fling_velocity=10000" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Touchscreen responsiveness" >> /system/build.prop
busybox echo "touch.presure.scale=0.001" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# CM9 Tweaks" >> /system/build.prop
busybox echo "hwui.disable_vsync=true" >> /system/build.prop
busybox echo "hwui.render_dirty_regions=false" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Graphic Tweaks" >> /system/build.prop
busybox echo "ro.product.gpu.driver=1" >> /system/build.prop
busybox echo "debug.gr.swapinterval=0" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Rapid Boot Technology 1.1 (Reduces bootup time)>> /system/build.prop
busybox echo "persist.sys.shutdown.mode=hibernate" >> /system/build.prop
busybox echo "ro.config.hw_quickpoweron=true" >> /system/build.prop
busybox echo "ro.config.hw_fast_dormancy=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Better battery life" >> /system/build.prop
busybox echo "ro.config.hw_fast_dormancy=1" >> /system/build.prop
busybox echo "ro.config.hw_power_saving=true" >> /system/build.prop
busybox echo "ro.ril.disable.power.collapse=1" >> /system/build.prop
busybox echo "pm.sleep_mode=1" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Pro-Tuned ADJ 1.2 by LENAROX." >> /system/build.prop
busybox echo "ro.FOREGROUND_APP_ADJ=0" >> /system/build.prop
busybox echo "ro.VISIBLE_APP_ADJ=4" >> /system/build.prop
busybox echo "ro.PERCEPTIBLE_APP_ADJ=3" >> /system/build.prop
busybox echo "ro.HEAVY_WEIGHT_APP_ADJ=2" >> /system/build.prop
busybox echo "ro.SECONDARY_SERVER_ADJ=1" >> /system/build.prop
busybox echo "ro.BACKUP_APP_ADJ=5" >> /system/build.prop
busybox echo "ro.HOME_APP_ADJ=6" >> /system/build.prop
busybox echo "ro.HIDDEN_APP_MIN_ADJ=7" >> /system/build.prop
busybox echo "ro.EMPTY_APP_ADJ=15" >> /system/build.prop
busybox echo "#Ultimate Assassin Mode!" >> /system/build.prop
busybox echo "#ro.SECONDARY_SERVER_ADJ=15" >> /system/build.prop
busybox echo "#ro.HIDDEN_APP_MIN_ADJ=3" >> /system/build.prop
busybox echo "# Raise photo and video recording quality" >> /system/build.prop
busybox echo "ro.media.enc.hprof.vid.bps=8000000" >> /system/build.prop
busybox echo "ro.media.enc.hprof.vid.fps=75" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "# Media Tweaks (Jpeg+Video+Streaming Enhancements)" >> /system/build.prop
busybox echo "ro.media.enc.jpeg.quality=100" >> /system/build.prop
busybox echo "ro.media.dec.aud.wma.enabled=1" >> /system/build.prop
busybox echo "ro.media.dec.vid.wmv.enabled=1" >> /system/build.prop
busybox echo "ro.media.cam.preview.fps=75" >> /system/build.prop
busybox echo "ro.media.dec.jpeg.memcap=8000000" >> /system/build.prop
busybox echo "ro.media.dec.jpeg.memcap=20000000" >> /system/build.prop
busybox echo "ro.media.enc.hprof.vid.bps=8000000" >> /system/build.prop
busybox echo "ro.media.codec_priority_for_thumb=so" >> /system/build.prop
busybox echo "media.stagefright.enable-player=true" >> /system/build.prop
busybox echo "media.stagefright.enable-meta=true" >> /system/build.prop
busybox echo "media.stagefright.enable-scan=true" >> /system/build.prop
busybox echo "media.stagefright.enable-http=true" >> /system/build.prop
busybox echo "media.stagefright.enable-record=true" >> /system/build.prop
busybox echo " " >> /system/build.prop
busybox echo "### PenberEngine Tweaks End here" >> /system/build.prop

updater-script

ui_print("************************************");
ui_print("*---------PenberEngine v1.1--------*");
ui_print("*----------by LeoLawliet----------*");
ui_print("************************************");
ui_print("");
ui_print("");
sleep(5);

show_progress(1.000000, 0);
ui_print(" Mounting filesystems...");
sleep(1);
run_program("/sbin/busybox", "mount", "/system");
run_program("/sbin/busybox", "mount", "/mnt");
set_progress(0.100000);

ui_print(" Adding prop tweaks...");
package_extract_file("prop.sh", "/tmp/prop.sh");
set_perm(0, 0, 0777, "/tmp/prop.sh");
run_program("/tmp/prop.sh");

ui_print(" Extracting files...");
package_extract_dir("system", "/system");
set_progress(0.300000);
sleep(1);

ui_print(" Installing Smart Launcher..");
set_perm(1000, 1000, 0644, "/system/app/SmartLauncher.apk");
sleep(1);

ui_print(" Setting permissions for /system...");
set_perm(0, 0, 0755, "/system/media/audio/ui");
set_perm(0, 0, 0644, "/system/lib/libncurses.so");
set_perm(0, 0, 0777, "/system/xbin/boost");
set_perm(0, 0, 0777, "/system/xbin/gm");
set_perm(0, 0, 0777, "/system/xbin/hc");
set_perm(0, 0, 0777, "/system/xbin/cpuramcheck");
set_perm(0, 0, 0777, "/system/xbin/rngd");
set_perm(0, 0, 0777, "/system/xbin/swap2cache");
set_perm(0, 0, 0777, "/system/xbin/swap2data");
set_progress(0.400000);
sleep(1);

ui_print(" Unmounting filesystems...");
run_program("/sbin/busybox", "umount", "/system");
run_program("/sbin/busybox", "umount", "/mnt");
set_progress(0.900000);
sleep(1);

set_progress(1.000000);
ui_print("************************************");
ui_print("* Install Complete! *");
ui_print("************************************");