That's a huge plus to BDSP imo.Gen 4 does give the impression that the devs struggled with the new hardware a lot (GF isn't known to have the best coders...)
the fact that all Gen 4 games are slow (DP especially, it's cruel) is another issue, though thankfully there are codes that unlock FPS, and because this is an older game the mechanics are tied to FPS, thus doubling the speed while maintaining the music (at least thats how I think it works)
I couldn't go back to Gen 4 otherwise, though this is very much a side effect of becoming really impatient due to less free time...
Everything is so much snappier and quicker it's not even funny.