uBlock Origin on Firefox slows aliexpress website by a LOT

This is been happening for years. I know aliexpress website is shit full of scripts and trackers but blocking with ublock origin specifically on firefox causes the performance to slow down a lot even on a high end pc (5950x here).

Test example this link: https://www.aliexpress.com/item/32990958387.html

Click on the various product images with ublock origin enabled and disabled and see the difference.

On chrome it doesn't happen.