I think you’re reading it wrong. Figure 17 says it’s 2.9 seconds, not milliseconds. Slower than pdfTeX which was 2.2 sec. But their incremental mode is faster a

I think you’re reading it wrong. Figure 17 says it’s 2.9 seconds, not milliseconds. Slower than pdfTeX which was 2.2 sec. But their incremental mode is faster at 0.6 sec.