I maintain that Rose is quite serviceable in the lead role. But in any case, I think the importance of “great performance” in these types of shows is overstated. For instance, you could easily convince me that Benoist is the Meryl Streep of the Arrowverse; she’s a very talented lady. But thespian proficiency can’t save bad writing. Indeed, it’s almost distracting to see
tour de force acting wasted on ham-fisted dialogue in a dumb scene. (Witness, for instance, Benoist and McGrath’s FoS scene in the recent “Tremors.”

) IOW, I’ll take serviceable acting and better writing over an Emmy-worthy performance and crappy writing.
And
Batwoman is better written. At least so far. Who knows what a hypothetical second season will bring? The Arrowverse series tend to devolve into convolutions in short order.