Selective Barriers & Feedback Loops change #823

Job	Run time
pr_build / macOS Universal (Debug)	4m 20s
pr_build / win-x64 (Debug)	7m 21s
pr_build / macOS Universal (Release)	4m 20s
pr_build / linux-x64 (Debug)	4m 48s
pr_build / linux-arm64 (Debug)	2m 49s
pr_build / osx-x64 (Debug)	4m 4s
pr_build / win-x64 (Release)	7m 28s
pr_build / linux-x64 (Release)	3m 59s
pr_build / linux-arm64 (Release)	2m 26s
pr_build / osx-x64 (Release)	4m 7s
	45m 42s

Provide feedback