I’ve got a good smartphone (an LG-P999), but run a lot of applications on it. Even though almost all of them are on the SD Card, the thing always gets sluggish. So I tried about 10 apps in the Google Play Store to fix the problem to no avail. But then I figured out how to manually clean up the data that was making the phone slow.
So here’s my tip to get your phone running fast again:
Go to: Manage Apps »> Dowloaded »> Sort By Size
Click on one of the apps and you’ll see this
The key is click the Clear Data button. If you just click Clear Cache there will still be a bunch of stuff in that app to slow your phone down.
But heads-up, if you do this with Gmail you’ll lose your signature. And you have to login again when you open the app again. So before you use the Clear Data make sure you back up any data you might need.
Give it a try and LMK