When i first boot my batocera, i noticed that is very slow on the menu UI, then i noticed too, that is set to initialize in FullHD (1920×1080p)… That is the problem
But you can easy force to initialize in HD (1280 × 720), by putting the SD card on a Windows or using WinSCP
Acess ../boot/batocera-boot.conf
Locate “# maximum resolution”
And change the es.resolution to **CEA 4 HDMI
es.resolution=CEA 4 HDMI
**
It will change the resolution to 1280 × 720