Instead of one giant card for all games:
This reduces fragmentation and speeds up in-game save browsers. memory card save file for pcsx2 ps2 better
Instead of presenting the user with static slots that must be manually swapped, the emulator should implement a Virtual File System Hub. This acts as a middleman between the game and the storage. Instead of one giant card for all games:
The biggest issue with PS2 memory cards is corruption or the "folder limit" (corruption happens when too many games write icons to the same physical card image). This reduces fragmentation and speeds up in-game save
Raw memory card files are binary blobs. To truly optimize them, you need third-party tools.