i did switch between vega pro, g-1 and genius and for me they play like the same kind of generation. the only thing that stands out for me that makes g-1 so good and still compete with modern rubbers is it‘s topsheet that grips the plasticball super well! all the other rubbers either have slipping problems or not as much spin anymore since the introduction of the plasticball.
so back to the topic: i actually always thought that tacky and responsive is not possible? you need to overcome the tack to get the speed and most rubbers that are super spinny are mostly pretty slow at hitting. the only way to make them fast is with a hard and dense sponge underneath so that you can get the power through that. but then you must hit hard to activate the sponge, wich in your case is not working due to technical problems in your backhand. so if you want a softer and easier to activate sponge then it will either be super spinny but slow or super fast but not as grippy.