Distortioned and not straight edges.

I have a small doubt that it is rather an aesthetic detail that I cannot know how to solve, I am working on an ArchViz model and I have little problems with the border of my shapes since they look distorted or blurred and they do not look straight as they are. This does not happen with all, but with some that are small, this is an import error or is normal
and in the final result you don’t see. Or in your case, how can I repair it?