From Komando.com….
While your Android’s hardware predetermines the device’s capabilities, there are a few factors that may hinder its performance. Lack of OS updates, an excessive number of apps, or accumulation of files can bog down your system, causing it to be sluggish.
If you find yourself frustrated with a slow operating device, it’s time to seek out solutions. In addition to installing all system updates, there are several other ways to improve the performance of your mobile device.