Default Backlight notification in MIUI and slowdown

Hello. I install MIUI version 4.1.24 based on Android 4.2.2. Why Lg backlight notification dont working and why this rom have slowdown animations ??
Log from lg notification :
Code:
Thu Jan 30 22:48:43 CET 2014 :: start :: Starting new log
Thu Jan 30 22:48:54 CET 2014 :: debug :: Screen on: false
Thu Jan 30 22:48:54 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_OFF
Thu Jan 30 22:48:54 CET 2014 :: debug :: Unregister sensor MPL accel
Thu Jan 30 22:49:05 CET 2014 :: debug :: Screen on: true
Thu Jan 30 22:49:05 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_ON
Thu Jan 30 22:49:05 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_USER_INTERACTION
Thu Jan 30 22:49:05 CET 2014 :: debug :: pnn: false
Thu Jan 30 22:50:48 CET 2014 :: debug :: Screen on: false
Thu Jan 30 22:50:48 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_OFF
Thu Jan 30 22:50:48 CET 2014 :: debug :: Unregister sensor MPL accel
Thu Jan 30 22:51:08 CET 2014 :: debug :: Screen on: true
Thu Jan 30 22:51:08 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_ON
Thu Jan 30 22:51:21 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_USER_INTERACTION
Thu Jan 30 22:51:21 CET 2014 :: debug :: pnn: false
Thu Jan 30 22:51:52 CET 2014 :: debug :: Screen on: false
Thu Jan 30 22:51:52 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_OFF
Thu Jan 30 22:51:52 CET 2014 :: debug :: Unregister sensor MPL accel
Thu Jan 30 22:51:55 CET 2014 :: debug :: Screen on: true
Thu Jan 30 22:51:55 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_ON
Thu Jan 30 22:52:26 CET 2014 :: debug :: Screen on: false
Thu Jan 30 22:52:26 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_OFF
Thu Jan 30 22:52:26 CET 2014 :: debug :: Unregister sensor MPL accel
Thu Jan 30 22:52:45 CET 2014 :: debug :: Screen on: true
Thu Jan 30 22:52:45 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_SCREEN_ON
Thu Jan 30 22:52:46 CET 2014 :: debug :: onStartCommand() com.martinborjesson.o2xtouchlednotifications.services.MainService.ACTION_USER_INTERACTION
Thu Jan 30 22:52:46 CET 2014 :: debug :: pnn: false