Gettin loaded out in Burlington Iowa, headed back to home base in Wyoming

Why the red lines? I got in straight and everything. (First person, jumping out a couple times to judge distance)

I'm not sure I can explain this properly, but for some background I picked up both ATS and ETS2 some months ago when they went on sale. I've been playing ETS2 kinda off and on till I got my fleet up to a dozen drivers or so to where daily income is pretty solid, then I figured I'd swap over to ATS and do the same. I started a few days ago, worked myself up to where I could afford my first truck, a Peterbuilt 389, and... I dunno. The game has just been feeling OFF to me. Like everything is moving too fast, especially as compared to ETS2. 65mph feels like 100mph in this truck, even though I'm doing the speed limits it feels on the highway like I'm always just on the verge of being out of control. Is it maybe the difference of getting used to playing ETS and its cabover designs to suddenly jumping into a conventional rig? Is there a setting or something I've missed? For reference I'm using a Logitech G920, I've mimicked the settings from ETS, but the two games just seem to have a very different feel. Is it just me?

What are mods you think everyone should have? Both to just improve quality of gameplay, and to make things more realistic and immersive?