https://retropie.org.uk/2020/11/retropie-4-7-1-update/
RetroPie 4.7.1 images are now available from the Download Page.
Unfortunately a couple of bugs crept into the EmulationStation front-end for the 4.7 release. A performance issue causing EmulationStation to have a poor frame rate and an bug affecting its built in scrapers.
The performance issue affected Raspberry Pi 0/1/2/3 users and is related to a problem with the EmulationStation GLESv2 renderer on the legacy broadcom drivers (we have switched to the previous GLESv1 renderer for now).
The scraper issue affected all systems, and was a problem introduced recently in the development branch that we missed.
These issues are resolved in the 4.7.1 image. If you have already installed the 4.7 image you don’t need to re-download. Just choose the “update” option from the main menu in RetroPie-Setup.