Last time I purchased epoxy I checked specifications on the labels.
I couldn't believe it and still not sure I do as I finally bought my original slow dry epoxy but the bond strength on the 5 minute was greater than that of the 2 Ton!. With modern marvels its possible the 5-minute is now stronger.
It wouldn't surprise me - everybody is in so much of a hurry nowadays I am sure more research would go into the quicker dry.