Add performance improvement recommendations#59
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Documents 10 clear performance issues identified in the codebase: - Double enumeration in FirstOrNone/LastOrNone/SingleOrNone/ElementAtOrNone - NoneImpl heap allocation on every None return (singleton fix available) - Closure allocations in void Match overloads - Task.FromResult wrapping in async bridge overloads - WrapCache sync methods blocking on async (deadlock risk) - Uncached reflection in F.GetGenericTypeArguments - IsNullableValueType repeated reflection per call - GetHashCode/equality operators routed through M.Match dispatcher - Intermediate byte[] allocation in MonadJsonConverter.Write - Per-call property reflection in F.Format named-placeholder path https://claude.ai/code/session_01YVJyo3wfK2a8KQsRRvkxUT
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Documents 10 clear performance issues identified in the codebase:
https://claude.ai/code/session_01YVJyo3wfK2a8KQsRRvkxUT