Why does my cell phone run slowly?

It could be that the storage is full due to the small storage size. There are two options. First option is you can do a factory reset to remove all stored data. If you would like to keep your current data and expand the storage, then the second option may be better. The second option is to install a new SD card. This allows you to keep your current data such as photos and expand the amount of storage for your phone so you can keep on taking photos. Your phone should go back to its normal processing speeds. To find these troubleshooting options follow this link: BLU Dash JR D140 Troubleshooting