The product Features tab contains predefined list of features and values you can select. Sometimes there are dozens or even hundreds of predefined features. The whole list must be loaded, although just few features are used for a given product. This may considerably slow the loading of product page in back office.
A possible quick fix for this situation is to load the features list only if they are needed. For Prestashop 1.6:
- upload this file
- unzip and copy to /override /controllers/AdminProductsController.php
- clear cache or manually delete /cache /class_index.php
The features tab in product page will now contain the button for switching the features in back office on / off . This setting apply for all products.
Important: do not override /override /controllers/AdminProductsController.php if it already exists
The procedure is safe and completely reversible, but cleaning the Prestashop cache is sometimes tricky. If you did not clean the cache for a long time, backup the /cache/class_index.php, clean the cache and wait several days to make sure no hidden problem become manifested after the cache was cleaned. Finally, perform the procedure described above.