Unreal Engine 4 Problem

I tested the Mobile Features on Unreal Engine 4 and now when i want to develop for Desktop and start the game from the Engine it renders blury and it looks not good,but when i Play it as standalone everything looks normal.I disabled Mobile Hdr and set my Project to Maximum Quality and nothing changed.

The project is the same?

If yes, does creating a new project gives you the same problem?

Yes,creating a New project gives me the same problem