premiere elements 15 app interface is scaled up on my larger screen

I have installed adobe premiere elements 15 and it would not go full screen on my second display. So I changed the primary display to my bigger screen and then tried to make the app's window full screen. It can now go full screen however everything in the app has scaled up. The fonts are bigger, the icons are bigger, widths and heights are bigger. It basically means that my work space is the same as if the app was on my laptop screen. Everything gets scaled up on my 27inch screen. photoshop elements 15 doesn't do this.

Please help.