Display shows overscan checkbox but no under scan slider

[c.link86]

hi so I am back on 10.13.6 with my Nvidia GT 730 I already installed the web drivers and set nvda_drv=1 boot flag and rebooted but my display settings show an overscan checkbox (unchecking it brings it to 4:3 ratio, and leaving it alone means the menu bar is cut off) if I were to use my IGPU (Intel HD 530) with the correct settings the under scan slider appears and I can shrink the desktop to a good ratio to where my menu bar shows here I am scratching my head trying to shrink my desktop so my menu bar will show