Website loading speed is very slow for new customers

Hello support, I did a website speed test and noticed that the loading time for new customer visits is terribly slow. Are there any plans to improve the loading efficiency of the site?

Hello,

We have optimized the store by design so that it loads faster for users and performs well in SEO. See the score of our demo store:

I suppose the issue here is with the images used. You may resize and compress the product images and try to see if that makes your store faster.

Hey support, I used pagespeed.web.dev and the results are different.

The images are an issue but not the main one with the loading speed. The images are already optimized when they are uploaded. I am not an expert but I see that the total blocking time is 1490 ms and the first First Contentful Paint takes place after 3.6 s for the site.