Configure the module on Opencart

Good afternoon!
Remote work on the site. You need to set up the module on Opencart. OpenCart version is 1.5.3. The site is a module "Product Option Discount" with which you can set discounts for different options.
Plus there is a module "update price when choosing an option"
On products that use the module "Product Option Discount" Auto-calculation of the amount depending on the selected options does not work.
Plus the installed module "Product Option Discount" conflicts with the module options_price_OC1.5_v1.0.0.xml (which adds multiplication, division, options)
Task:
1. Update the price when choosing an option, without AJAX (OC1.5, OC2)" Works with products in which there are discounts on the options
2. Resolve the conflict "Product Option Discount" and options_price_OC1.5.xml