Merge pull request #797 from camsys/perf-fix #517

Job	Run time
linux-64-py3.10	4m 55s
develop-docbuild	3m 46s
macOS	9m 28s
prototype_mtc	46m 18s
win-64	9m 6s
estimation_mode_test	16m 23s
prototype_arc	54m 5s
prototype_mtc	49m 56s
placeholder_psrc	41m 19s
prototype_psrc_in_development	13m 0s
random_seed_generation_test	2m 23s
prototype_marin	1m 23s
prototype_mtc_extended	3h 3m 54s
placeholder_sandag	2h 24m 7s
prototype_sandag_xborder	5m 29s
production_semcog	5m 26s
prototype_mwcog	50m 41s
placeholder_multiple_zone	7m 52s
	10h 49m 31s

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