Suggestion: use an accelerometer data on mobile and use that to directly replace gravity. I expect to be able to tip the phone to drape the cloth, and shake the phone to get waves of motion.
I think the little tears were fine, but my expectation of the weight of the cloth wasn't so much that it would start to rip on its own after a certain point. It felt more like a wet dough at a certain point than cloth.
Suggestion: use an accelerometer data on mobile and use that to directly replace gravity. I expect to be able to tip the phone to drape the cloth, and shake the phone to get waves of motion.