Increase loading speed of our website on SquareSpace

Hi. We host our website on SquareSpace. We show classic cars with a lot of photos, sometimes up to 100 photos per car. The website is quite low to load, so I am checking how to speed the loading of it to the buyers. I checked with Chatgpt that if use Cloudflare.com and an image compressor together, that would increase the loading speed of our website to the customer. I need someone that understands this part to increase the loading speed of our website, check it´s content to see if there is anything else that is necessary to make. Adjust it. Make it load faster.