What is wrong with my Website? Very high leaving rate on shop page

Hello everyone

I own a swiss shop where I sell wool beanies mainly.

I've run instagram and google ads, and the people spend a lot of time on the starting page scrolling and reading (avg 45 seconds).

But as soon as they go on the "shop" page, the bounce rate goes to about 80%.

Does anybody know why? It's a normal shop page I believe.

Here is the page: https://vald.ch

Thank you very much for your help