The world of Android is growing so rapidly that it became the largest selling mobile platform. The ever increase in demand for performance made few mobiles fall behind.
During initial release of Android mobiles, many mobiles came up with little internal memory and low CPU peed. With the advent of new technology the processing speed and RAM of mobiles climbed high. The older mobiles lagged a lot in performance. New apps are developed which consume lot of phone memory and these apps are required for many users. This consumed lot of ROM as well as RAM bringing down the performance. So here are few tips to increase the performance and speed of your mobile.
1) Move Apps to SD cardInstall most of your apps on your memory card. Move the apps to memory card with the inbuilt "manage applications" options or with any application available on play store.
Two apps are worth mentioning here for this, link2sd and Appmgr III. You can move apps to sd card with these apps. Link2sd requires root. With this application you can move many apps to sd card that are not movable with traditional options.
2) Clear cache and Junk files
3) Better kill background applications
Background applications which constantly try to connect to Internet when available consume your mobile's RAM.
These apps may pose a problem for mobiles with low processing speed. It is better to kill the background apps with custom task manager (if available) or any third party app from Play store. Sometimes background applications may freeze your system or create force close errors.
4) Root Your Device
Root your device to add additional features with which you can open the hidden options. You can move traditional apps to sd card that install only on phone memory by rooting your device.
NOTE: Rooting your device wil void the warranty of your phone.
One of my experience is worth mentioning here. I have rooted my Motorola milestone and installed Cyanogen mod 7. After this all my apps including official Google apps like Gmail, Maps, Play Store and YouTube are installed on sd card leaving me lots of space for phone memory. My mobile became sleek and stunningly fast.
So better root your device and move almost all apps to sd card.
5) Install a custom ROM
Stock ROM will consume lot of phone memory. People who want to get a new experience with their mobile or who got bored with the limitations of their traditional stock ROM, install a custom ROM for your mobile.
Most of the custom ROMs will occupy very less phone memory giving you extra space. Also custom ROMs will give you extra additional features which stock ROM doesn't.
6) Stay to Optimum
Some apps consume very high RAM even though they are installed in sd card like live wall papers, launchers, themes etc. It is better to avoid all these unless you feel that they occupy very less space and consume low RAM.
7) Disable windows animations
Disabling windows animations will enhance faster scrolling, quick access and fast loading of applications. Disable windows animations by accessing the development menu from the settings of your mobile.
8) Understand the Layout
Though you move apps to external sd card they will still consume some amount of your phone memory. So think before installing apps on mobiles having low internal memory. Don't install heavy apps which your mobile can't handle them. Don't use live wall papers when your CPU speed is low.
9) Better not to update the official OS
It is better to keep your mobile with stock ROM while you were when you purchased the mobile. Higher versions of Android will occupy more space and use more RAM.
10) Disable unwanted settings and apps
Disable/Uninstall unwanted system apps and also disable unwanted features that use Internet in background (ex: syncing) to avoid consumption of extra RAM.