How to remove unnecessary links from search engines on wordpress?

Question

Search Engine Optimization

I have 147 products on my site , and there are a couple of pages, there is also a sitemap.xml file created by the YoastSEO plugin https://workmetall.com/sitemap_index.xml
and a robots.txt
file created using sites. I myself poorly understand it in the sitemap and robots.txt
The essence of the question is that google indexes 783 links from my site and most of the links are just pictures of goods and as I understand it is bad for SEO, how can I solve this problem?
Thank you all for your patience and help

Answer 1

Indexed pictures are not bad, but good. It's not a problem. Your site can also be found by images.
The real problems of your site:
- terrible loading speed
- no titles
- no h1 and wrong hierarchy of titles
- wordpress (you chose the wrong cms for your online store)