Lazy DataFixerUpper(LazyDFU) [FORGE] Mod 1.16.1–1.19.3

LazyDFU is a Forge mod that defers DataFixerUpper rule compilation until data migration is actually needed, improving startup speed by avoiding immediate rule generation. It does not modify DFU, avoids world corruption risks, and may cause brief lag spikes during rule compilation—less risky than removing DFU entirely.

It works alongside Cadmium and Smooth Boot but is superior because it skips full DFU compilation, unlike Smooth Boot which only throttles rule processing.