since i never saw anyone complain i never played it for myself and alot of ppl passed the entire game and said nothing it could be a region speed up only? what version pal or ntsc? some pal games like resident evil4 and killer 7 do have speed ups if you select 50Hz for instance.
The speed up (metal gear solid twin snakes) is so minor Im amazed anyone ever noticed like I said I had to go back and forth a few times to convince myself . It wasnt that nintendont felt too fast, more like the original felt too slow after getting used to nintendont. If anything nintendont provides an improvement!