Do the behavioral factors of one group of pages affect others?

Question

Search Engine Optimization

Hello!
A few months ago I created image viewing pages for a certain screen resolution. For user convenience (desktop wallpaper preview). But after some time, according to Yandex metrics, the number of visits to the site, directly to such pages, increased (attendance remained the same). The bounce rate on these pages is accordingly very high (under 50-60%) because there is one picture, a download button and several similar images.
As a result, the overall bounce rate on the site increased from 12% to 20%.
Should I delete these pages to keep the overall performance? There are a lot of them (such pages), about 100 thousand, but apparently, not all of them are in the index of search engines, because. pr-cy writes that the number of pages in Google and Yandex searches is 70 thousand each, and this is the number of pages on the site without taking into account, without taking into account the pages I'm talking about.

Answer 1

1- don't use pr-cy as an analysis tool, it's a poor old site. Use Google Search Console and Yandex Webmaster.
2- behavioral factors of one group affect the entire site, but you need to look at what you have on other pages with PF, in general, if everything is unchanged, then leave it as it is and don’t worry.

Answer 2

Well, the obvious conclusion from your experiment is that it does not affect