why some slots make you wait forever between spins

some of these new slots drag the time between spins out so much it actually kills the whole mood for me. not talking about the bonus screens or anything flashy, just the base game itself takes a solid pause after each spin before you can go again. i notice it more on the online versions than at live casinos too. does anyone else get annoyed by this or do people prefer having that break to think? maybe there's a reason behind the delay, like to slow down losses or encourage you to bet more per spin? curious what everyone thinks about why they do it.