Virtuemart get products from category without limit

Question

I am trying to pull all articles from single VirtueMart category. I am having problem with pagination and default settings set in VirtueMart (max items per page).

I have this code below which works for limited number of articles (set in VM settings). This gives data for 40 articles. Is there a way to pass parameter of a page I want to load? For example, if I have 400 articles, VM will show 10 pages in pagination. How can I pass pagination and load page number 2 for example? I do not mind if have to load all 400 articles at once and implement my own pagination.

        include_once JPATH_ROOT . '/administrator/components/com_virtuemart/models/product.php';
        $model = new VirtueMartModelProduct();
        $items = $model->getProductsInCategory($this->input->get("catid"));

        foreach ($items as $key => $item) {

            $item = get_object_vars($item);
            $item['media'] = $mediaModel->getFiles("", "", $item['virtuemart_product_id']);
            
            $objekt = (object)[
                "mf_name" => $item['mf_name'],
                'product_name' => $item['product_name'],
                'prices' => [
                    'product_override_price' => $item['prices']['product_override_price'],
                    'product_price' => $item['prices']['product_price'],
                    'discountAmount' => $item['prices']['discountAmount'],
                ],
                'file_url' => $item['media'][0]->file_url,
                'virtuemart_category_id' => $item['categoryItem'][0]['virtuemart_category_id'],
                'category_name' => $item['customfields'][0]->custom_title,
                'link' => $item['link']
                
              ];

            
            $output[] = $objekt;
        }