If I can help mate I'll I will if not i'll find info that will
TBH mate I think it's a personal preference, but most peeps turn of HDR & motion blur, and depending on your V-card performance most other settings medium to high, I looked for a discussion thread for Video settings but couldn't locate one, sorry mate, ya gonna have to run that by trial N error
Not sure about the Apps mate, I don't use them personally, but from what I hear some are great additions. Here's a link to a few apps take a look http://www.racedepartment.com/downloads/categories/ac-apps.4/
Here's a link to some setups mate, Pinned at the top of the list is a AC setup guide too, it's actually very good, gives some good detail into setup principals. You can copy and paste it into Word then print it, it's what I did, comes in real handy too.
http://www.racedepartment.com/forums/assetto-corsa-setups.116/
Hope these things help mate, and BTW you're not a "Dim-Witted Noob" just mentally challenged like the rest of us NORMAL people
Cheers
Last edited: Jul 20, 2014