Well I don’t know anything about your blocks example but I’ve talked about it a lot and I’ve posted numerous real world print examples of my print times on both machines all about of how the H2D is slower than any other Bambu printer on everything except over a hundred color changes and yes I do mean using both nozzles. The H2D prints so slow that that the P1S can load 1 color at a time on for example 20 swaps and beat out the H2D. The H2D prints slow and you can see it with yours eyes that it prints careful and slow although better.
I’m too lazy right now to repost all my real world examples printed on both machines but if you’d like to revisit the thread: “H2D slower compared to A1” you will find all the info there. There is also another thread titled: H2D prints slower but better than the X1