Correcting issues with a VueJS price comparison template

I have a vueJS template running on my server, I have some ongoing work which is not done yet by the previous developer. The template is a frontend that publishes a comparison data which comes from the JSON file, that the backend has requested from the data vendors. The data comes in pages from the API each page has a maximum of 150 documents per page, so when the user has reviewed the first 150 documents than it should load the second page with a new 150 documents. That part the previous developer didn't get to work right. He displays the data and the pagination but when we load the new data after the 150 products has been reviewed it load new data and in some way, it confuses because it falls back again to previous pages and the prices of the product don't seem ordered because it mixed high with low. Also, the JSON file does have aspects of the products, I need to displays them because these are filters too like price. You need to have a good in API's processing and also vueJS and JSON Please check the template here [login to view URL] Max bid is $50