Win7 64bit, AMD FX-8350 & GTX 970
-novid -snoforceformat -nojoy -nosteamcontroller -noff -nohltv -high -nouserclip -softparticlesdefaultoff -reuse -usetcp -console -w 1024 -h 768 -refresh 115

comanglia_stability
2639 frames 16.721 seconds 157.83 fps ( 6.34 ms/f) 12.015 fps variability
2639 frames 16.654 seconds 158.46 fps ( 6.31 ms/f) 10.425 fps variability
2639 frames 16.616 seconds 158.83 fps ( 6.30 ms/f) 10.560 fps variability

mastercoms_maxperformance
2639 frames 20.960 seconds 125.91 fps ( 7.94 ms/f) 8.524 fps variability
2639 frames 20.793 seconds 126.92 fps ( 7.88 ms/f) 7.420 fps variability
2639 frames 20.881 seconds 126.38 fps ( 7.91 ms/f) 7.539 fps variability

I play with all those sounds related switches and I can confirm that stutter is gone.

You got memed into installing arch.
1) arch is a DYI distro
2) it might break any time you update it especially when you don't know what you're doing
3) you don't gain anything by using arch except for the ability to customize it as you desire and a large selection of software

Do yourself a favor and install solus. It's as optimized for desktop usage as it can get tbh. Something you won't get with arch unless you do some manual patching.

I believe that is meant for servers. I have never seen any benchmarks for that patch either.

I'd say Solus would be the best choice. It's kind of like arch on the technical level but with the easiness of ubuntu. It's made by a former intel dev and shares a lot of optimizations with Clear Linux. They also came up with this clever thing - https://github.com/solus-project/linux-steam-integration. It replaces the outdated steam runtime with the latest and more optimized system libraries. It's also available for arch afaik. Last I checked the entire system consumes 300-400mb of ram and boots in 1 sec off an SSD.