Hello @mapdi,
Our plugin is one of the fastest for WooCommerce.
But a lot depends on:
– Numbers of attributes
– Numbers of variations
– How many resource-intensive options did you use (for example filtering by meta fields https://woobewoo.com/documentation/filter-by-custom-meta-field/)
– Hosting quality
We have users with 35000+ products so 15,000 attributes and variations shouldn’t be a big deal.
You can test the performance on the free version, to conclude whether you need a professional version. The paid version only adds functionality.