Well all these data tell us is that alacritty has more latency than some terminals and less latency than others. It does not tell us why it displays the latency

Well all these data tell us is that alacritty has more latency than some terminals and less latency than others. It does not tell us why it displays the latency that it does. In other words, correlation is not causation. Many other factors are at play here. I’ve given you a rationale for why the GPU rendering technique inherently minimizes latency over the software rendered technique. Can you provide a rationale for why software rendered terminals would have an inherent advantage in terms of latency?