That 3-point bar actually does something for performance as opposed to NVH reduction and maybe improved steering feel. You're getting some triangulation back to the firewall, assuming that it was done up properly. The problem you're trying to solve is chassis torsion, which is a 3-D structural problem that isn't going to be helped much by a brace that only connects straight across in one transverse plane (and is typically only bolted to the strut towers at the strut attachment bolts).
It certainly isn't going to reduce roll unless the entire front structure of your car is in danger of collapsing, but it might let "X" amount of roll feel more composed and fool you into thinking there's less roll.
(retired structural guy)
'08 GT coupe, 5M, wheels, tires, pads, fluid, a few suspension mods . . . still almost stock height
'19 WRX, 6M (the "family sedan")
'01 Maxima 20AE, 5M (the spare and occasional winter driver)