Example Performance Low FPS

[Radlad-io]

Hey all,

I got the Three.js NFT example working.
https://github.com/AR-js-org/AR.js/blob/master/three.js/examples/nft.html

However the performance seems less than ideal. It's clocking in at around 14fps on my iPhone12 Pro. Any ideas why the performance takes such a hit in this example?

Thank you in advance!