chore: reduce instantiation ovherhead & refactor optimize #492

Job	Run time
Build wasm	2m 5s
Run tests on Linux x86 (stable, no default features)	1m 1s
Run tests on Linux x86 (nightly, no default features)	1m 6s
Run tests on Linux x86 (nightly)	1m 8s
Run tests on Linux x86 (stable)	55s
Run tests on Linux arm64	1m 9s
Run tests on Linux armv7	1m 10s
Run tests on macOS arm64 (Apple M1)	1m 12s
	9m 46s

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