It is a philiosophical question if one prefers to be happy and unknowing (with the advantage not having to learn, to think or possibly to change as a consequence and the disadvantage not to achieve the best possible outcome) or rather to become knowing and aware that the current outcome may not be the best one possible - with the danger (but not the necessity) to become less happy by this finding but the possiblity to enhance and maybe (by having the choice between various possibilites and better knowledge) to not only achieve a better outcome but also a even higher amount of happyness than with nescience. Your choice.

I am not telling any dirty secrets here: There are plenty of rolling tests of 20" tires and it is an easy find that even Schwalbe lists the Kojak withing their "Tour" category of tires https://www.schwalbetires.com/bike_tires/road_tires and not in their "Road" category https://www.schwalbetires.com/bike_tires/racing_tires which could be a slight hint....

Shooting the messenger is a common pattern but has never proven to actually be that useful. Only PastorBob can tell if he prefers the cushiness in combination with good speed that the Kojak offers or would rather have a faster, but possibly less comfortable tire (as was the question asked in the thread). A hint that his topic is - in opposite to his assumption - only to a small degree covered by the existing thread may be considered impolite or uncomfortable by you - if I was in that situation I would be thankful and would consider a hint like that to be very helpful.