first thing you have to do:
uninstall bloatwares
in my opinion, bloatwares are pre-installed apps that you do not use, apps that are not necessary and it only eats your ram and battery. you can only remove bloatwares if your smart phone is rooted.
NOTE:be careful when uninstalling apps, some apps are needed for your phone to function normally. you can google kung anung mga pre-installed app yung pwede mung tanggalin.
stuff you might be interested with:
search about link2sd app it might be useful
search about lucky pâtcher, game häçker
search about overclocking,tweaking
search about custom roms
search about custom recovery
hope this helps....