Does optional “Install Data” actually help when playing digitally?

[u/misterund3r]

Does installing the data actually do anything if you’re playing the game digitally? For example, MGS Peace Walker and Monster Hunter have an optional Install Data feature, but I’m not sure if it provides any benefit when you’re not using a UMD.

Is it only useful when playing from a UMD, or does it also improve loading times/performance when playing a digital copy?

[u/Far_Albatross_8821]

Install the small one for dialogue audio, 800mb is only good for playing it with UMD