Lines are not smooth. Made of smaller straight lines.

[BoeflexGrey]

Hello. When I draw lines in photoshop with any brush, on any device, the lines are not smooth but are made up of smaller straight lines. I thought it was a tablet problem, but it happens with my mouse as well. I tried searching all over for this problem, but I can't find anything about it. Maybe I just wasn't searching for the right things. All drivers and photoshop are up to date. I have restarted. The program is running well on good hardware. I'm just not sure what's going on here. I'm sure it's something simple, but I can't figure it out. I'd really like to draw today haha. Thank you.

Attatched are lines drawn with my Wacom tablet (left side) and my mouse (right side)

 

[c.pfaffenbichler]

Could you please post screenshots with the pertinent Panels (Toolbar, Layers, Brush Settings, Options Bar, …) visible? 

[BoeflexGrey]

Here it is with all that stuff. It could certainly be a windows problem too but I can't figure it out. I've tried so many things and nothing helps.

[c.pfaffenbichler]

Have you tried using Photoshop’s Smoothing (second from the bottom in the Brush Settings Panel’s list on the left side)?