https://github.com/muchobien/flipper-plugin-react-native-mmkv/blob/main/packages/react-native-mmkv-flipper-plugin/index.ts#L29
My understanding is that it would be better to connect to the MMKV instance directly, perhaps using the Databases approach the Flipper documentation highlights, it might be more performant. https://fbflipper.com/docs/setup/plugins/databases/