We have installed the populate cart contribution on one of our customers website. The file is modified by a programmer to do what our customer wants.
However after adding between 15 or 20 products in the cart it becomes very slow(1 minute or more per product). Our customer is working with a handheld scanner for barcodes so it should be much quicker.
Can you speed up this files so it is also workable with more products.
Please only respond if you are experienced in PHP/Ajax and Oscommerce
Programmers available on IM (Skype/MSN) have prefrence.