Performance issues caused by switching models multiple times

[fengyu666999]

I need to load multiple models at the same time, each model needs to be loaded with a new USDZLoader(), but one USDZLoader occupies 800M memory, if there are multiple USDZLoaders, and I need to switch models, the browser performance will not be able to support, I want to know how to release the wasm memory introduced by USDZLoader