I still have issues on my 5s. It takes 5 - 15 seconds to change pages in Safari. MacRumors is a good example: I open a forum, click on a thread title, and the blue status bar stalls for 5 - 15 seconds before it finally loads the new page. Sometimes it times out and I have to switch off wifi and reload. I'm beyond frustrated with this issue. At this point I'm not even using wifi on my phone which is chewing up my cellular data.
Are you on 8.02?