To check for the most recent official software available for your specific region: Settings Menu System update to check for any OTA (Over-The-Air) updates. Manual Download : You can find official firmware packages on the Vivo Support Page Unofficial Options
and can "brick" (permanently disable) your phone if done incorrectly. "Give me a paper"
Since the stock Vivo firmware is heavy (Funtouch OS), you can try porting (Android 7.1.2) to this device (MT6750 chipset).
Notifications from the same app group together, clearing up status bar clutter. Prerequisites Before You Begin