Apple

I’m having a hard time explaining this but my apps do something weird when they open or when I transition between two apps. For context, I was using iPhone X until recently and now am using 15 so there’s been a major update and maybe I’m not used to it.

Basically, my apps open very fast? Is there a way to make it slower/ smoother? I find it very trippy and would like to go back to the older version if that’s a setting.