This is a fair question. The stock Funtouch OS that runs on this phone is very old. For some, it may feel sluggish and lacks modern security updates. Installing a custom ROM like a GSI can breathe new life into this aging device.
Reviewing the (popularly known as the Go to product viewer dialog for this item. vivo 1610 custom rom work
For the Vivo 1610, custom ROMs alter your user experience in several ways: This is a fair question
