The ini file has good defaults now, so no need for that anymore. If you want to you can enable reprojection in that file, but considering Iran would probably like your PC for national centrifuge control or working out the lost digits of PI, then I think you’ll be alright with it off. 
I personally still do the ‘200% manual override’ and just leave everything else at the 100%, PD 1 etc. That was of course when I had a working computer capable of flight sims (sniff, sobs, sniffs a bit more…). I bookmarked that steamvr settings post here.
The ‘Visual Quality > Very high (beta)’ just does the WMR apps quality I think, of which I think the only one in existence might be the ‘Cliff Top home’ thingy. Can’t hurt though.