Is there any way to stop the water and Cyborg Ninja's stealth camo from frame dipping you the hell up? (besides obviously turning the effects off)
I'm playing with the widescreen mod on 4k.
Specs
GTX 1080ti
Intel 6700k
16 gigs of ram (Corsair Dominator Platinum)

The frame dipping with stealth is something they are figuring out to fix still. They nailed pretty much every issue besides that one. I'm sure they are doing there best. Tbh I don't use stealth on snake but the VR mission ninja challenges are a little annoying when your game does get choppy due to using stealth on times. I hope it gets fixed in time.

The low audio quality and the fact that most boss fights play the incorrect battle theme ("Duel" should be played, and in fact still correctly plays only in the Ocelot boss fight, the first in the game, but instead "Encounter" is played for the remaining boss fights) are pretty important problems. Those REALLY need a fix.

For incorrect music played in boss battles, PLEASE!!! (at least some one who understands) Take a look at least:
stage.mgz\stage\sound\
and
stage.mgz\stage\s04b\ (this is Ocelot fight, is playing correct music - 0x0c.wav, if someone manages identify where is that determined data, we could change in other maps)

data.cnf - file listing the files loaded for a scenario.
from listed files is there .wvx, .mdx, .efx - but appears to be empty (looks like should be data on audio files).
Music playing from "MDX/0x0c.wav".

.resident - res_mdl1.dar / .res
.nocache - .bin / .dar (textures)
.sound - .mdx / .efx / .wvx
.cache - all other data

So maybe
scenerio.gcx - script.
Maybe in there is somewhere 0x0c is listed? (Also possible something like this "%s0x%0cx")
More info: https://www.mgsdevwiki.com/wiki/index.php/GCX (0x698d - sound)

Any update on a potential fix for the lag on cutscenes and in gameplay for when Stealth is used in MGS1 and VR missions?

Hopefully Thiev is still checking this out, I know it's been asked but not sure it's been addressed but if it's possible, it would be amazing if the soundtrack and sound effects could be fixed. I also ran into an issue where my game would crash after using the codec to contact Otacon right after the Gray Fox fight.

Yep, I can confirm this. I can still save from the pause menu just fine, though.