Price Codes are utilized in the calculation of Item prices, which display on many web pages. To calculate the appropriate price, every valid price code must be checked, which can affect the speed of pages with many items.
To enhance the speed of your web site, remove Price Codes that are not being used. Login to Macola as the Supervisor and navigate to the O/E Setup screen. In the Valid Price Code Types section, make sure that only Price Codes being utilized are selected. All others should be removed from the setup file and if you are in a hosted environment then perform an Upload all changes.
Another thing that can affect speed is Best vs. Priority (Price Code Use). Best checks every price code and then selects the best price. Where as Priority stops once it finds a price code.