[Optimus L3, L5, L7 General] fenomeno83:
I want to write this post to speak about my experience with l7 of my girlfriend. In this moment her l7 is fast and nice.

What I did?

Install v20a by homero: http://xdaforums.com/showthread.php?t=2214717

Make format (restore settings) by setting of the phone

Wait that phone reboot and set correct language and make first access

Go in to cwm recovery (with android terminal emulator write: su , click enter, write reboot recovery , click enter) and make wipe data, wipe cache and advanced-wipe dalvik cache

If initial android settings appears again (because "wipe data") choose correct language and make first access

Now install 20b rooted http://xdaforums.com/showthread.php?t=2239786 (I install 20a before because it has more language; but if you update 20b over 20a you don't lose choosed language also if it isn't present in 20b)

Install root explorer to make some changes

From system/app delete browser (I suggest to install dolphin mini e set desktop mode user agent) ,youtube (you can install from play store and don't have in system) and weather (I use beautiful widget) ; if you have maps, gmail, polaris office, delete them and download and install from play store (or you can copy and paste them in sdcard, delete from system and reinstall); I use quickpic as gallery and mx player as video player

From notification bar you can edit and unflag in QSlide options "Calendar" because doesn't work; for browser(deleted before) is not a problem, because after reboot it will not appear more

I install seeder 1.4 to reduce lag: http://xdaforums.com/showthread.php?t=2237776 , open, enable rng and set "start automatically on boot"

I install v6 supercharger in this manner: download this http://www.mediafire.com/?8ei5qbzy5s0bp68, unzip and copy in sdcard.

From android terminal emulator digit su , click enter, digit sh sdcard/SuperCharger_Starter_Kit/StartMeUp.sh , click enter. Choose YES to different options.

After download http://www.mediafire.com/?sdytjb056bje98a , install lg drivers if you don't have, choose debugUsb from developer options, connect phone in "charge only" mode. Start downloaded exe file from your pc and press enter when it asks; when it ask about "adb", choose "No".Follow steps (choose die(D) for kernel mode if it ask, 1 for scrolling if it ask) and click YES to others;when a superSU popup will appear in your phone, click OK (phone will restart); go until ask about multitask mod (choose No, so process will end).

Copy this in sdcard http://www.mediafire.com/view/?ngomnmpbs3ya9ol and from android terminal emulator write su ,click enter, write sh sdcard/99SuperCharger.sh , click enter.

Will start superchanger configuration; choose "YEs" to different option (1 for scrolling if it ask, die(D) for kernel mode if it ask);when you can choose option from 1-33 choose 5. After finish, close terminal emulator.

With script manager (browser as root if it ask) go in data/99SuperCharger.sh and press su, boot and save

Install kickasskernelizer: http://www.mediafire.com/view/?4zf6hbko51gf8nh .As v6 supercharger, copy in sdcard, from terminal emulator write su , press enter, write sh sdcard/S98KickAssKernelizer.sh , press enter.

Choose K (kernelizer) and choose yes for IO scheduler tweeks. With script manager (browser as root if it ask) go in data/S98KickAssKernelizer.sh and press su, boot and save

Enable hardware acceleration: http://xdaforums.com/showthread.php?t=2231523

Install rambooster and for the first time open and make boost now (will appear on the top a red icon, so when you want free ram you tap there)

Reboot phone and wait scanning of storage

Yout phone will be fast and updated