Cython perf simplification #1489

Job	Run time
runnable	0s
lint / lint	25s
test (3.9, true, true, ubuntu-latest)	8m 15s
test (3.9, true, true, macos-13)	14m 45s
test (3.9, true, false, ubuntu-latest)	7m 47s
test (3.9, true, false, macos-13)	12m 42s
test (3.9, true, false, macos-latest)	6m 42s
test (3.9, false, false, ubuntu-latest)	7m 21s
test (3.9, false, false, macos-13)	17m 2s
test (3.9, false, false, macos-latest)	5m 2s
test (3.13, true, false, ubuntu-latest)	10m 48s
test (3.13, true, false, macos-13)	17m 53s
test (3.13, true, false, macos-latest)	8m 30s
	1h 57m 12s

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