What is the danger of an abundance of modal windows?

Question

HTML

A small catalog of 10-15 items, a detailed description opens in modal . Is it normal that there will be 10-15 modals in the code? What will be affected? On the speed of the page? How to make it better?

Answer 1

one modal window in which data is loaded by Ajax depending on the selected position

Answer 2

A detailed description is allocated to a separate page because of Seo. Usually, the future modal window is just markup and is handled by js on hover. Shouldn't slow down too much.