I’m not talking about picking examples in different fights where someone looked bad or put in a bad performance. I’m sure you can find examples of Liston during his entire career looking slower than Joshua did in the Wlad fight, if you really wanted to but that’s not the point of this thread. Simple question to you and just need a one word answer. Who do you think has the faster handspeed, Liston or Joshua?
In any case, Liston is currently greater than any active heavyweight. So even if he is quicker than some of the heavies today, it doesn't matter too much because the heavies currently aren't ATG's.