Some tweaks & their explanation & use Add them according to ur will...

#Battery -----

ro.ril.disable.power.collapse=0 - This setting puts your phone into a deeper sleep when on standby. This may improve battery life.
pm.sleep_mode=1 - This sets the phone to use power collapse when in standby.

0 - Power Collapse Suspend
1 - Power Collapse
2 - Apps Sleep
3 - Slow Clock and Wait for Interrupt (default)
4 - Wait for Interrupt

wifi.supplicant_scan_interval=180 - This sets your WIFI to scan less frequenty. This conserves battery life, however may come with side effects such as WIFI points not showing up as fast.

#Response

touch.pressure.scale=0.001 -fix mistype issue on putting on charger & more sensitivity

debug.performance.tuning=1 - Increases touch responsiveness.

video.accelerate.hw=1 - Increases touch responsiveness.

windowsmgr.max_events_per_sec=150 - Increases scrolling responsiveness.

#extras

persist.sys.use_dithering=0 - Disables dithering which can speed up your phone at the cost of Image Quality.

ro.ril.hsxpa=3 - Enables HSUPA for faster uploading speeds

ro.media.enc.jpeg.quality=100 - Makes JPEGs higher quality

ro.media.dec.jpeg.memcap=8000000 - Increases the memory cap when decoding JPEGs.

ro.media.enc.hprof.vid.bps=8000000 - Increases the video recording quality.

persist.adb.notify=0 - Disables the debug notification icon on the status bar. Doesn't increase performance at all.

#Internet Speed
Increases network speed.

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