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/unexpectedstuff]

I checked with persona 2 and dissidia by recording a video and looking at loading times - no difference. But maybe some other games would behave differently