Get your car re-aligned from front and from behind otherwise you will always have complains with breaking and stability.
Its ok, you have placed spacers but I think you did not needed that on front. Secondly I have tried spacers on back wheels of one of my cars and trust me it looked hideous and braking was at its worst.
Then I got it removed, took it to lathe shop and had it grinded till its height was reduced to half. That way it look reasonably good, gave an original feeling and compensated for cng cylinder weight and ground clearance improved. Stability and braking was back after a back wheel alignment and camber adjustment which is must after such alterations.