I recently bought a ottobox defender for my Samsung Galaxy Notre 5, every time I've put it on the screen is bubbly, I can't type or anything properly and is really annoying.
Do you have a tempered glass screen protector on the device or any other screen protector on just the phone it's self before you put it into the otter box? If so you will have to remove it.
If you don't, return the case for another one. Might have a defective case.
The Defender has a built-in screen protector, correct? I was never a fan of those and found they were a pain to type on as well. But I agree, if it seems like a big issue you might want to try a swapping it for a new one and see if it's any better.