What's the simplest way to disable secondary animations for hair/clothing etc?

[YulesRules]

I'm using multiple VRMs in a mobile app and while, on current devices, this isn't a problem with enough decimation and bone removal, I'm looking for the simplest/most graceful way to disable real-time calculations for secondary animations like hair and physics? Whether by disabling spring joints or otherwise.

If some devices are having a hard time, I'd like to be able to disable those features automatically.