IMHO....
Did you go up in tire size?
If so, did you also increase the rim width to match that upsizing?
Too much sidewall bend-back will have the exact same tire behave differently on a narrow vs wide rim
That increased sidewall bend-back will increase the slip angle and pull the outer tread away from the pavement and bulge the center ribs (not a lot, but enough to make the tire behave differently)
As others have mentioned...a highway tread pattern vs large lugged also behaves differently. On very aggressive lugged treads...there are patents covering several ways to keep those lugs from bending over. Yokohama has steps from the root up to about 1/3 the way up. Some have webs....etc. All to manage allowance of how much those lugs will bend or move around when the tread is new
Guessing the biggest issue with this OP's quest is that the rim width is on the narrow end of that new tire's spec. The OEM tire was better suited for that rim width
