I can't imagine going any faster than 2 mph with the bars at that angle, so unlikely to affect normal riding requirements.
My main concern would be the limiter on left hand turns appears to be the controller cable, the failure of which could get a little expensive I think. You could get a little more slack in the controller cable by pulling the left grip off and the left brake lever, then loosening the controller clamp screw and rotating the controller forward one complete turn.
You could also see if there's any slack in it by gently pulling it out of the frame some. Same for the rear shifter cable and rear brake hose, those might be easier to try getting slack out of the frame run by removing that cable management coil first.