You found the specs for the HHKB Pro, not the HHKB Lite 2. The Lite version costs much less, so I don’t assume they share the same chips. I used the HHKB Lite

You found the specs for the HHKB Pro, not the HHKB Lite 2. The Lite version costs much less, so I don’t assume they share the same chips. I used the HHKB Lite 2 for about 17 years and had a good experience with it. If there was a latency delay in the hardware, I never noticed.