To change product information display on the category page, you will need to do the following:
*In the folder plugin/templates/standart create another folder "products"
* Copy the file plugin/modules/products/views/tpl/productCategoryContent.php into "products" folder
* Now you can make modifications
Mind that after this operation only product information display will be changed and not the view of the page itself.
*To modify the external view of the page, you will need to make changes in the file wp-content/themes/YOUR_THEME/archive.php .
Don't forget to back-up the files you've changed to avoid unnecessary stress because of the data loss .