Rendering Issues

[ichinozori]

How do I make certain sides (like the image I attached) render properly so they don't look like this and how do I make the original textures render in HD so they don't look blurry?

[maru]

What resolution are your texture files? You are rendering them zoomed in, in 4K resolution. Perhaps they are just originally too small?

[romullus]

Look at AI upscaling your textures. Programs like Gigapixel, does pretty good job at that.