I changed to IEMs.

Input lag?

Maybe it is a similar issue: framebuffer emulation.

Maybe is too soon for cycle accuracy N64 emulators. We will get it eventually.

FPGA emulation is another level. The video says that FPGA emulation is near flawless except homebrew.

Do you remember if you had the black screen in this track?

It's a classical issue in n64 emulators.

Yes, you are right.

I can imagine external developers asking Nintendo for a d-pad.

I would say that initially they located it there to get some symmetry because aesthetic reasons.