ColorOS often includes pre-installed apps that consume system resources. Custom ROMs are typically lightweight, offering a "clean" Android experience.
if you prioritize longevity, a clean interface, and modern features over specialized camera software. While the stock oppo a91 custom rom better
, many users find it impossible to apply a full custom ROM through standard methods. The Alternative: If you can't find a dedicated ROM, many users opt for GSI (Generic System Images) a clean interface