[Xperia SP General] Levered:
For UB and Root devices

Download [MENTION=2784807]DooMLoRD[/MENTION] kernel (http://xdaforums.com/showthread.php?t=2345567) I suggest use V10 fix 2

After flash, install this apps (http://xdaforums.com/showthread.php?t=1305060)

and set this setting

Use Hard Gaming/Hard Multitasking

Copy this code end lines on your build.prop

#Disable checkin services
ro.config.nocheckin=1
# Disable USB Debugging
persist.adb.notify=0
# Google DNS
net.dns1=8.8.8.8
net.dns2=8.8.4.4
net.rmnet0.dns1=8.8.8.8
net.rmnet0.dns2=8.8.4.4
# Decrease boot time
ro.config.hw_quickpoweron=true
persist.sys.shutdown.mode=hibernate
dev.bootcomplete=0
# Power saving
ro.ril.power_collapse=1
pm.sleep_mode=1
wifi.supplicant_scan_interval=120 (sets wifi scanning interval, can be increased or decreased)
# 3G Tweaks
ro.ril.hsxpa=2
ro.ril.gprsclass=10
ro.ril.hsdpa.category=10
ro.ril.hsupa.category=5
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.rill.enable.a53=1
# Telephony/ring Tweaks
ro.telephony.call_ring.delay=0
ring.delay=0
# Proximity
mot.proximity.delay=0
ro.lge.proximity.delay=25
# Smooth Scrolling
windowsmgr.max_events_per_sec=84(This value is experimental)
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
# Disables error reports
profiler.force_disable_err_rpt=1
profiler.force_disable_ulog=1
# Render UI with GPU
debug.sf.hw = 1
# Disable logcat
logcat.live=disable
#Allows purging of assets to free up RAM
persist.sys.purgeable_assets=1
# Performance tweaks
debug.enabletr=true
dev.pm.dyn_samplingrate=1
video.accelerate.hw=1
ro.vold.umsdirtyratio=20
debug.overlayui.enable=1
debug.egl.hw=1
ro.fb.mode=1
hw3d.force=1
persist.sys.ui.hw=1
ro.sf.compbypass.enable=0
debug.sf.hw=1
debug.composition.type=c2d
persist.sys.composition.type=c2d
debug.performance.tuning=1
# 3d performance
persist.android.strictmode=0
ro.min_pointer_dur=1
ro.secure=0
# Media Quality
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
ro.media.dec.aud.wma.enabled=1
ro.media.dec.vid.wmv.enabled=1
ro.media.cam.preview.fps=0
ro.media.codec_priority_for_thumb=so
# Liquid Smooth Ui
persist.service.lgospd.enable=0
persist.service.pcsync.enable=0
# Qualcomm tweaks
com.qc.hardware=1
debug.qc.hardware=true
debug.qctwa.preservebuf=1
debug.qctwa.statusbar=1
# 3G network for speeding up
ro.ril.set.mtu1472=1
# Disable Logers
ro.config.htc.nocheckin=1
ro.config.nocheckin=1
profiler.force_disable_ulog=1
profiler.force_disable_err_rpt=1
# Better battery life:
usb_wakeup=enable
proximity_incall=enable
power_supply.wakeup=enable
ro.config.hw_power_saving=1
ro.config.hw_fast_dormancy=1
ro.config.hw_quickpoweron=true
persist.sys.use_dithering=0
pm.sleep_mode=1
ro.ril.disable.power.collapse=0
ro.mot.eri.losalert.delay=1000
ro.ril.sensor.sleep.control=1
# Better signal reception
persist.cust.tel.eons=1
ro.config.hw_fast_dormancy=1
# Signal Tweaks
persist.cust.tel.eons=1
ro.ril.gprsclass=10
ro.ril.hsdpa.category=8
ro.ril.hsupa.category=6
ro.ril.hsxpa=1
# Net speed 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
net.tcp.buffersize.hspda=4096,87380,256960,4096,16 384,256960
net.tcp.buffersize.hspa=4096,87380,256960,4096,163 84,256960
# 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
# Scrolling speed
ro.min.fling_velocity=8000
ro.max.fling_velocity=12000
windowsmgr.max_events_per_sec=300
ro.min_pointer_dur=8 touch.pressure.scale
# Nitro lag Nullifier ACTIVITY
INACTIVE_RESET_TIME=false
APP_SWITCH_DELAY_TIME=false
CONTENT_APP_IDLE_OFFSET=false
CPU_MIN_CHECK_DURATION=false
EMPTY_APP_IDLE_OFFSET=false
ENFORCE_PROCESS_LIMIT=false
GC_TIMEOUT=false
MAX_ACTIVITIES=false
MAX_HIDDEN_APPS=false
MAX_PROCESSES=false
MAX_RECENT_TASKS=false
MAX_SERVICE_INACTIVITY=false
MIN_CRASH_INTERVAL=false
MIN_HIDDEN_APPS=false
MIN_RECENT_TASKS=false
PROC_START_TIMEOUT=false
SERVICE_TIMEOUT=false
# RAM Management
ro.config.hw_fast_dormancy=1
# Grpahics & performances tweaks
debug.sf.hw=1
debug.composition.type=c2d
debug.enabletr=true
debug.qctwa.preservebuf=1
ro.sf.compbypass.enable=1
video.accelerate.hw=1
ro.media.enc.hprof.vid.fps=75
debug.egl.hw=1
persist.sys.use_16bpp_alpha=1
debug.performance.tuning=1
persist.sys.use_dithering=0
persist.sys.ui.hw=1
windowsmgr.max_events_per_sec=1000
ro.max.fling_velocity=10000
ro.min.fling_velocity=6000
# Battery improvements
pm.sleep_mode=1
ro.ril.disable.power.collapse=0
persist.sys.shutdown.mode=hibernate
wifi.supplicant_scan_interval=180
# Media quality improvements
media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=true
media.stagefright.enable-http=true
media.stagefright.enable-record=false
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
# Dalvik tweaks
dalvik.vm.dexopt-data-only=1
dalvik.vm.verify_bytecode=false
dalvik.vm.dexopt-flags=v=n,o=v,m=y
dalvik.vm.execution-mode=int:jit
dalvik.gc.type=precise

Download init.d and extract it

Copy folder to system/etc

Make correct permission and reboot

[FOLDER= rwxrwx--x]

[FILE= rw-r--r--]

more tweak will add coming soon