Dani Londono

James, I'm not sure if you meant vellum substeps or DOP substeps, but I'm having luck with increasing the global DOP substeps by the same amount as the slow down, keeping the vellum solver substeps the same.

JamesEdward
Try increasing the sub steps to around 10 when reducing the timescale to 0.1. This can help improve the cloth simulation and keep it tight to the character. Also, adjust the stiffness or damping settings on the constraints like "Pin to Target" to avoid the cloth ballooning out. This should help the cloth match the animation more accurately in slow motion.

it's funny because my impression is that with lower timescale you can get away with less substeps haha, which definitely doesn't seem to be the case in my situation. I will try your suggestions, thank you!

tamte
It's hard to say without seeing the scene, but make sure your character is moving smoothly between frames, either live deformed or interpolated between frames, otherwise it may be difficult for geo to catch up with constraints specially when using substeps, but of course it can be a different issue

Thank you Tomas! Yes the character and collisions are both interpolated between frames, I should've mentioned that in my post. I will try to submit an example of my issue soon.