Pillagers spawning way too often

Whenever i am in my world pillager patrols spawn alot, i have killed around 17 patrols, given that i have 17 illager banners, it also made it so i have killed off so many villages, a small drop in spawn rates would be helpful, or at least when you start a new world patrols don't spawn at first, having the spawn rate go up over the time spent in that world