Setup Algolia search on our website

We have an Algolia plugin on our website and Algolia setup at the Algolia end, but the searches are returning slowly and poorly. We would like someone to fix the setup both on our site and at the Algolia end for us properly. This is on our new site that is in development. We already have this search running successfully on our main site which has the same products etc.

As an update to this project I forgot to mention that the site is built using Nopcommerce so is ASP .Net Core