Do note that Zod is a bit of an outlier in how slow it can make type checking, e.g. https://dev.to/nicklucas/typescript-runtime-validators-and-dx-a-type-checkin

Do note that Zod is a bit of an outlier in how slow it can make type checking, e.g. https://dev.to/nicklucas/typescript-runtime-validators-and-dx-a-type-checking-performance-analysis-of-zodsuperstructyuptypebox-5416 https://dev.to/nicklucas/typescript-runtime-validators-and-d... one of the tests hits nearly 300ms, but no other library even touches 100ms.