For Events App v3, we have made some changes which will improve performance and enable updated QR scanner functions.  There is a brief video on this topic here.

QR Scanner

Enabling v3 will also update the QR scanner functionality to the latest state available.  Here is an article on how the QR Scanner should be set up:  https://support.vutu.re/hc/en-us/articles/360020558177-QR-Scanning-Best-Practice