I find it’s no harder to carry that before I added the optic. I carry AIWB.
The Brownell’s slide took a little break-in but is now trouble free.
I decided to give optics a try when I started to get back into competitive shooting after a couple decade absence. I shot a bowling pin match and a USPSA style match and found I was really hampered by my crappy eyesight and progressive bifocals. Close range was ok, as I could just index the gun and get a flash sight picture but anything past about 7 yards had me tilting my head way back to try and see the sights, I could make the hits but was very slow. There is a training curve for me as this is the first optic I’ve had on a pistol.
Nothing shows your short-comings like shooting against a timer or another person under pressure!