>>542227471
I'm pretty sure he's outright physically weaker
In Cam's flashback a version of Rover beats Camellya, Phrolova and Scar at the same time with a basic sword.
Here he seems to struggle to fight Frog and Scar at the same time

>>542156519
In one of the Camellya timelines where she joins the Fracsidus it shows Rover fighting Scar, Phrolova and Camellya at the same time.
Rover wins and she stands among the defeated