Physics Issue with Prishe's Bolero of Striking

Frequency: Always, depends on movement
Character name: Noah Faustus (Lalafell)
Class/Level: Monk/Samurai level 100

Hello. There is quite a glaring issue with "Prishe's Bolero of Striking" and its physics when the game is played below 60 fps. I play exclusively at 30 fps (as I cannot go higher due to my graphics card almost overheating even when idle at 60 fps). The sleeves of the top jitter and glitch depending on certain movements/emotes/etc. I have been told by other users that physics glitching under 60 fps is relatively common, and it does seem to be the cause for this specific issue. If it helps, I have a Radeon RX 580 graphics card with one fan in it.

Video example:
https://imgur.com/2YJuayd

I have tested:
- Physics settings set to "full" (issue present) / "simple" (doesn't move at all) / "off" (doesn't move at all)
- Tall races (Hyur / Viera specifically, have not checked others) physics at 30 fps work correctly
- "Small" races (Lalafell) have the issue present
- Issue smooths out (with some clipping still visible) at 60 fps for Lalafells (not tested on tall races, as there wasn't a glaring issue for them to begin with)

I have used a lot of glamours and have never had this glaring of an issue with them before. There are always some clipping issues, which are fine; they can't be helped sometimes. However, if the physics on this shirt could possibly be either fixed or improved for users under 60 fps, I would be grateful.

Thank you for reading. Feel free to ask any questions and I will do my best to answer.