Not inherently – the core game engine is unchanged. But because you can remove the encryption layer and tweak internal settings, it is possible to make minor improvements that the official developers never implemented.
Let’s be very clear:
As Isaac, you navigate procedurally generated basements, fighting monsters and collecting items to boost your abilities. The death of a character is permanent, forcing players to start a new run, making it a true roguelike experience. What Does "Decrypted 3DS (e)" Mean? the binding of isaac rebirth decrypted 3ds e
: Intended for use on a physical Nintendo 3DS console. Not inherently – the core game engine is unchanged