Bear in mind a 2.25" Advantage is much bigger volume than a 2.35" High Roller. A 2.5" High Roller is very similar in volume to a 2.25" Advantage
Something to do with an advantage being a 'new' tread design (along with crossmarks, ardents) on bigger carcasses, and high rollers are an 'old' read design (along with minions, larsen TTs, ignitors) and much smaller
I reckon my 60a 2.35" HR is grippier than my 60a 2.25" advantage up front in slop and probably better in turns etc, but I think mostly because my rims are too narrow (mavic XM719s) to get proper/decent performance out of the advantages. They need some nice wide rims I think, like 28mm DT EX5.1Ds, Bontrager Rythms etc ..
Although a much better fit to my rims, the high rollers have much taller cornering tread so probably contribute to better cornering as well as fitting with a much squarer profile to XM719s