Those performance figures do not add up at all. I would expect a A72 at 2.3G to be at least 3-4 times as fast as the A53 at 1.4G on the Pi3B+. It should be about twice as fast just from the architecture upgrade, then add on the extra clocking.
As as for the website comparison - what utter bollocks. That more related to memory, and networking that the CPU speed.