Iphone ipdate

I updated my iphone couple of days ago and it started to work slow for some reason.
Did you guys have something similar? How do I make it work faster?

Thank you for your reply. I've done some research as well.
Looks like this issue is not uncommon and mostly happens because new software can be more demanding than previous.
I will try clearing all the cookies, cache, close all the background apps first and see if that helps.xx