Another update, I've narrowed it down to being a sound related issue. I've ditched Win10 for now (too many other issues) so this is on Win7.
Basically any song that is a 100% hit sounded map like
Imperishable Night has no stutter whatsoever and runs 100% smoothly. Any other song that has music in the background still has stutter regardless of settings in-game (fps cap/volume/etc).
More importantly, the problem has lessened significantly with some of the later cutting edge updates, I don't know which one specifically since I didn't update the one on this pc for a week and a half or so. It is still unplayable with the stutter however, just not completely nauseating to look at like before.
Things tested:
- Any possible combination monitor resolutions, screen refresh, and single/dual screen (tested this again just in case, but didn't change anything).
- Multiple sound drivers tested (base version, updated through win7, and the very latest directly from the vendor website), no difference between any of them so I just kept the very latest version.
- Sound outputs, no difference between optical/direct and any combination of speaker/amp/headphones I had available to swap.