all build.prop tweaks
http://forum.xda-developers.com/google-nexus-5/development/build-prop-tweaks-t2781369
1. Fast Reboot
persist.sys.purgeable_assets=1
1.1 Faster boot.
ro.config.hw_quickpoweron=true
2. Increasing The Video Recording Quality
ro.media.enc.hprof.vid.bps=8000000
3. Screen Rotate To 270 degree
windowsmgr.support_rotation_270=true;
4. Increase VM Heap Size(resolve some fc's)
dalvik.vm.heapsize=64m
5. Render UI With GPU
debug.sf.hw=1
6. Increasing It Will Make Mobile Smoother
windowsmgr.max_events_per_sec=150
7. Video Acceleration Enabled And HW debugging. debug.composition.type can also be changed to cpu or mdp.
video.accelerate.hw=1
debug.sf.hw=1
debug.performance.tuning=1
debug.egl.profiler=1 # Measure rendering time in adb shell dumpsys gfxinfo
debug.egl.hw=1
debug.composition.type=gpu # Disable hardware overlays and use GPU for screen compositing
8. Increase Performance
debug.performance.tuning=1
9. Disable Sending Usage Data
ro.config.nocheckin=1
10. Deeper Sleep/Better battery life
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
11. Ringing Will Start Immediately
ro.telephony.call_ring.delay=0
ring.delay=0
12. Disable Error Checking
ro.kernel.android.checkjni=0
13. Increase Quality Of Media Streaming
media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=true
media.stagefright.enable-http=true
media.stagefright.enable-rtsp=true
media.stagefright.enable-record=false
14. Disable BootAnimation
debug.sf.nobootanimation=1
16. Force To Remain Launcher In Memory
ro.HOME_APP_ADJ=1
17. Disable Waking Up Of Phone By Volume Buttons
ro.config.hwfeature_wakeupkey=0
18. Off The Proximity Quiclky After Call
mot.proximity.delay=25
ro.lge.proximity.delay=25
19. Better Signal Tweaks
ro.ril.hsxpa=2
ro.ril.gprsclass=10
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5
persist.cust.tel.eons=1
ro.config.hw_fast_dormancy=1
20. NetSpeed Tweaks
net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,163 84,256960
21. Google DNS Tweak
net.rmnet0.dns1=8.8.8.8
net.rmnet0.dns2=8.8.4.4
net.dns1=8.8.8.8
net.dns2=8.8.4.4
22. Photo And Video Quality
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
ro.media.capture.maxres=8m
ro.media.panorama.defres=3264x1840
ro.media.panorama.frameres=1280x720
ro.camcorder.videoModes=true
ro.media.enc.hprof.vid.fps=65
23. Touch Responsiveness
debug.performance.tuning=1
video.accelerate.hw=1
24. Scrolling Responsiveness
windowsmgr.max_events_per_sec=500
25. Power Save Tweaks
pm.sleep_mode=1
ro.ril.power_collapse=1
wifi.supplicant_scan_interval=180
ro.mot.eri.losalert.delay=1000 could brake tethering
26. Disables Debug Icon On Status Bar
persist.adb.notify=0
27. Faster Better Scrolling
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
windowsmgr.max_events_per_sec=150
ro.min_pointer_dur=8
28. wifi to scan less frequently
wifi.supplicant_scan_interval=180
29. improve battery under no signal
ro.mot.eri.losalert.delay=1000
30. makes apps load faster and frees more ram. (Edit exsisting line)
dalvik.vm.dexopt-flags=m=v,o=y
31. Off The Proximity Quickly After Call
ro.lge.proximity.delay=25
mot.proximity.delay=25
32. Disables built in error reporting.
profiler.force_disable_err_rpt=1
profiler.force_disable_ulog=1
33. 3G tweaks.
ro.ril.hep=0
ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=8
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=6
34. Disables logcat
logcat.live=disable
35. Screen recognizes only two fingers.
ro.product.multi_touch_enabled=true
ro.product.max_num_touch=2
36. Support for ipv4 and ipv6.
persist.telephony.support.ipv6=1
persist.telephony.support.ipv4=1
37. Disables blackscreen issue after a call.
ro.lge.proximity.delay=25
mot.proximity.delay=25
38. Better call voice quality.
ro.ril.enable.amr.wideband=1
39. Dalvik Virtual Machine tweaks.
dalvik.vm.checkjni=false
dalvik.vm.dexopt-data-only=1
dalvik.vm.heapstartsize=5m
dalvik.vm.heapgrowthlimit=48m
dalvik.vm.heapsize=64m
dalvik.vm.verify-bytecode=false
dalvik.vm.execution-mode=int:jit
dalvik.vm.lockprof.threshold=250
dalvik.vm.dexopt-flags=m=v,o=y
dalvik.vm.stack-trace-file=/data/anr/traces.txt
dalvik.vm.jmiopts=forcecopy
40. Disable notification while adb is active
persist.adb.notify=0
41. Change LCD density
- Default value is 240. Don't forget to install a patched market after changing it.
ro.sf.lcd.density=240
42. MMS APN retry timer set to 2 sec( if SMS/MMS couldn`t be sent, it retries after 2 instead of 5 seconds).
ro.gsm.2nd_data_retry_config=max/_retries=3, 2000, 2000, 2000
43. Key lights stay on while screen is on.
ro.mot.buttonlight.timeout=0
44. Disable strict mode checking.
persist.android.strictmode=0
45. Remove FPS cap. May be unstable - better have it activated
debug.gr.swapinterval=0
47. Disable notification sound for SD storage insert
persist.service.mount.playsnd=0
48. Enable display dithering
persist.sys.use_dithering=1
49. More volume steps in call.
ro.config.vc_call_steps=20
50. Phone will not wake up from hitting volume rocker.
ro.config.hwfeature_wakeupkey=0
51. Lock app in memory.
sys.keep_app_1=com.your.app.app
52. Enables MTP mode.
persist.sys.usb.config=mtp
53.Liquid Smooth Ui
persist.service.lgospd.enable=0
persist.service.pcsync.enable=0
54. Qualcomm tweaks
com.qc.hardware=1
debug.qc.hardware=true
debug.qctwa.preservebuf=1
debug.qctwa.statusbar=1
55. Wireless Tweaks
net.ipv4.ip_no_pmtu_disc=0
net.ipv4.route.flush=1
net.ipv4.tcp_ecn=0
net.ipv4.tcp_fack=1
net.ipv4.tcp_mem=187000 187000 187000
net.ipv4.tcp_moderate_rcvbuf=1
net.ipv4.tcp_no_metrics_save=1
net.ipv4.tcp_rfc1337=1
net.ipv4.tcp_rmem=4096 39000 187000
net.ipv4.tcp_sack=1
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_wmem=4096 39000 18700
wifi.supplicant_scan_interval=180
Change android name and version
ro.build.display.id=Your ROM name
ro.build.version.release=4.4.2 (Android version number)