Default [Q] Keyboard appearance delay after update 4.3

So after I updated to 4.3 I've been getting this weird delay when I press the text box to write text in my sms app. It takes a while before the keyboard pops up. The back button is somtimes unresponsive and I need to hold it which kills the app and that takes me to the threads again.

Anyone else experienced this with 4.3?

I've been having this for a while now but didn't hit me that I could make a thread and ask :P.