[HTC Aria Android Development] munjeni:
Found again something very interested:

ro.secure=0
ro.allow.mock.location=1
ro.debuggable=1
persist.service.adb.enable=1
# Disabling camera sound
ro.camera.sound.forced=0
# Disable frequent scan of wifi channel to retain more electricity
wifi.supplicant_scan_interval=180
# Enable power collapse when idling (to retain electricity)
pm.sleep_mode=1
# Enable radio power collapse as well
ro.ril.disable.power.collapse=0
# Extend the 'Loss of Signal' alert to smooths out constant disconnects and reconnects and save the battery life
ro.mot.eri.losalert.delay=1000
# Choose to use the best network and best class for our device
ro.ril.hsxpa=2
ro.ril.gprsclass=45
ro.ril.hsdpa.category=28
ro.ril.hsupa.category=7
# Enable dual channel mode for faster network speed if PS + CS is supported for simultaneous transfer
# Set this to 1 if your network allows simultaneous transfer of Circuit switched (CS) voice and Packet switched (PS) data over the same radio channel (ARFCN)
ro.ril.enable.dtm=1
# Enable radio encryption for hsdpa / hsupa
ro.ril.enable.a52=1
ro.ril.enable.a53=1
# Add a prefix to the network name if the phone is connected to a 3G network
ro.ril.enable.3g.prefix=1
# The following three properties are unknown buy yet not harmful to the system!
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hep=1
# Increasing the size of tcp buffer
net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960
# Enable performance boost by using GPU acceleration
debug.sf.hw=1
debug.performance.tuning=1
video.accelerate.hw=1
debug.composition.type=gpu
# Increase the events limit for windowsmgr for better performance
windowsmgr.max_events_per_sec=150
# Enable better image quality (for zoom in or out)
persist.sys.use_dithering=1
# Enable better jpeg quality (for both decoding and encoding)
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
# Enable bravia engine
ro.service.swiqi.supported=true
persist.service.swiqi.enable=1
# Unlock the framerate as allow >60fps eglSwapBuffers
debug.gr.swapinterval=0
debug.egl.swapinterval=0
# Decrease the delay for showing an incoming call
ro.telephony.call_ring.delay=0
# Decrease the proximity sensor delay so that proximity can work faster when using phone call
ro.lge.proximity.delay=25
mot.proximity.delay=25
# Enabling / disable streaming on the following protocol
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
# Enable purgeable assets to save space on RAM (or just for the system mmcblk?)
persist.sys.purgeable_assets=1
# Disable optin user stat submission
ro.config.nocheckin=1
# Disable to notification (logo) of adbd
persist.adb.notify=0
# Force home application (luncher) to stay in memory for better response (unsure about its effect yet)
ro.HOME_APP_ADJ=1
# Disable service iq
service.iq.active=0
# For faster boot, use hibernate mode instead of restart mode (however this can create problem as we need to wipe dalvik cache for every boot)
# persist.sys.shutdown.mode=hibernate (don't enable it yet)
# Following are all dalvik vm setting which is the best part to boost app performance
# Enabling jit mode to boost the performance
dalvik.vm.execution-mode=int:jit
# Generated verified dalvik cache for all application including system application, for faster speed
dalvik.vm.dexopt-flags=m=y,v=a,o=v
# Disable checking in dalvik vm to further boost the performance
dalvik.vm.checkjni=false
# Set the dalvik vm heapsize to 64MB
dalvik.vm.heapsize=64m

So guys I have no time to test everything from there, so I will be happy if someone test something of these default.props on his phone and report about improved perfomanse! Android testing is realy an ~~~thing and need a lot of time for testing so any help for improving our cm9 on aria will be very helpfull !