Hello, To avoid the lagging problem in device its always suggested to move downloaded 3rd party applications, games etc. to external storage(SD card). Save videos, images and music etc in SD card. This will improve the phone's performance. You can also use Smart Manager feature. You can scan and optimize your smartphone, all at once. The Smart Manager app shows its four main components: Battery, Storage, RAM and Security. You can view and optimize your device through closing running apps and uninstalling unnecessary apps. The Security menu scans your phone for malware and other security threats. My Knox is also available to download for even more security. To boost your device’s speed and performance in a single click, use “Clean All.” Hope this will work for you :)
