There is a significant gap between Batocera v30 and the current version (v43). While v30 is stable and functional for many retro systems, it is older and lacks some modern features. The newer versions (v31 and above) are . Attempting to boot a 64-bit image on a 32-bit PC will result in a failure.
The Ultimate Guide to Batocera on 32GB 32-Bit PCs: Setup, Links, and Optimization batocera 32gb pc 32 bits link
To get the absolute best performance out of your legacy setup, apply these configuration tweaks within the Batocera menu: There is a significant gap between Batocera v30