4.40.3 product page is loading too slow.

4.40.3 product pages are loading too slow. I had updated to the latest NOP theme per my webmaster.
The NOP Demo store is very fast without a theme, the demo store with NOP's theme is broken on the product pages.
In the NOP forums, there are 2 other people complaining about NOP running slow on the their 3.40.3 as well, and at least one of them is blaming their NOP template.  

Hi thurnau,

We haven't noticed any of the product pages on our demos (we have more than 40 demo stores) to be slow. We use the latest nopCommerce 4.40.3 version.
Could point out (provide a link) to any product page where it is loading slowly?

https://test1.memma.com/
All the product pages load slow, the category are mostly ok. It's when you click on a specific item and it's way too slow.

Hi thurnau,

I just browsed your website and the product pages load pretty fast compared to the other pages.
In any case if you are using nopCommerce 4.40.3 then I would advise to update it to the very latest nopCommerce 4.40.4.