tweak some performance regression test warning thresholds (downward/tighter/noiser): reacting to various performance improvements. Still needs a round or two of testing to see we introduced no needless warnings
tweak some performance regression test warning thresholds (downward/tighter/noiser): reacting to various performance improvements. Still needs a round or two of testing to see we introduced no needless warnings

SophistSolutions/Stroika,SophistSolutions/Stroika,SophistSolutions/Stroika,SophistSolutions/Stroika,SophistSolutions/Stroika