Bad quality when I start playing this level in viewport

Hi. So i have this UE project, everything looks um decent when im in the editor mode, moving and creating and so on. But when i hit ‘Play this level in the active level editor viewport’ and so called game starts, quality drops. Like I can see pixels. I know about engine scalability, the settings are fine.
Does anybody know what might be the problem? I really need it to look better than this :frowning: My teacher doesnt know what the problem is either. We tried to launch it on his computer and the quality was kinda better than mine. It wasnt all pixels at least.
I have MSI GeForce RTX3060 and AMD Ryzen 9 5950X 16-Core Processor if it helps