I suspect USN construction schedules for new ship types with a great deal of new and untried equipment would be more at the mercy of the particular engineering management capabilities of various private subcontractors, than would be the case with Chinese navy.
to be blunt, In peace time, US contractors and subcontractors have more leverage to protect themselves in case of underperformance, and the US navy and prime contractor has less freedom to crack heads to get things done or back on schedule, than would be the case in China.