The response time from https://embed.sellix.io/product/6011e41969f3d?username=mak& is around 800ms every time.
This seems quite slow, the response time from https://keyauth.sellix.io/ is around 200ms every time.
I'm connected via Ethernet to Fiber Optic internet on University campus in the middle of a huge city. So I think the response time is on Sellix's end.
I recommend 2 options:
  1. If not already being done, cache the data being used for the embeds with a software like Redis.
  2. Cache the URL in Cloudflare. And then, when a user updates their product on Dashboard, send a request to Cloudflare's API to purge that specific URL pattern, https://embed.sellix.io/product/6011e41969f3d*
Hope this can get implemented soon. If you get the embed response time as quick as the store response time which is definitely obtainable, that would be 4x faster. Surely the user experience would greatly increase.