Does multiple instances of the same collection list affect site performance?

I’m building a site where some of the collection lists has to be added multiple times on the same page due to things like sliders or other design solutions that needs to place things outside of the parent collection wrapper. I was wondering how this will affect the overall site performance? Will it make a connection every time a collection list is added, even if its multiple instances of the same? Is the site rendered to static pages after publish? If so, I can just rock on :wink:

Best
Peter Bartel
Sweden