You can try every project preset or output preset you want, but if the media is DVD it will be crappy. DVD is the old Standard Definition ("SD") format. Think tube TV like your grandma had. DVD can't deliver to High Definition ("HD") TVs with the quality now expected as the current standard.
As an example, I recently paid good money for a DVD of a school performance my granddaughters were in. The well paid videographer put it on DVD so it could be played universally. Compared to what I shot with my consumer grade camera with "HD" settings, it was terrible.