Running the Play Store on older hardware can be sluggish. To speed things up:
Android 5.1.1 and the Play Store are suitable for most mobile users who want a reliable and feature-rich operating system with access to a vast collection of apps and digital content. However, users with lower-end devices may experience occasional performance issues, and those who prioritize customization may find Android 5.1.1 to be limited in this regard. android 5.1.1 play store