how to improve poor scene quality?

does anyone have any idea how i can make the scene not look pixely and low quality? ive tried everything i could think of from optimizing the graphics quality from the project settings to fixing all sprites pixels to using post processing,

this is what the scene look using unity remote from my phone,

and this is what the unity editor scene looks like.

I had a similar problem once when I pivoted a PC build over to mobile. My image files where too large and the quality broke when rendered down to the smaller size.

Might also want to try building it to your phone though, as unity remote is sort of just a glorified screencast. I haven’t found it to be a reliable indicator of quality or performance.