perf: optimize EvaluatorWithHooks (#73) #99

Job	Run time
test-packaging	3m 22s
test-contract-tests	2m 38s
test-platforms-and-versions (ubuntu-latest, 8)	2m 32s
test-platforms-and-versions (ubuntu-latest, 19)	2m 31s
test-platforms-and-versions (ubuntu-latest, 17)	2m 19s
test-platforms-and-versions (ubuntu-latest, 11)	2m 36s
	15m 58s

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