Slow App Downloads on iPhone?

My internet seems to be fine and can access pages quickly, but i can't download apps fast anymore. I already tried to change the DNS on my iPhone but to no avail. The apps are still download the same. Very slow.

I think you should clean out your OS. Backup your data and reset your phone into factory defaults. Then it will be ok.

Try rebooting your iPhone first and see if it helps. If not, Contact Apple Care for technical support or sign up online for Apple Genius Bar appointment at your nearest Apple retail store. All the best.