Blurry text in game

Hello guys!

Had a break of LoL for about 2 years now. Patched it and when I get in game all the menu/shop texts are blurry but the other graphic is as it's supposed to be. Tried googeling without any luck! Can't read stuff like what items do or nothing..

Need some help to resolve this problem!

It's the loading screen, chat, in game shop etc.