Only have about 3 games with R&F but it does seems slower on average. There are all kinds of neat benefits here and there for science, but costlier eurekas, inspirations, and nerfed rationalism is just so huge. Also not sure what's going on with great people. There's clearly more of them which is somewhat of a plus, but in a way in makes it tougher to get the deeper people that matter. There are also seems to be a bug where for whatever reason some great people cost 3350 points or so, even if the next is cheaper.