I like the new path and its unforseen consequense of making the barbarians stronger since they pillage-heal as well, but i have one - two major issues now, the game freeze crashes on me now for three games in a row when a leader screen are loaded for the first time and sometimes the second time. this is annoying since it occures in the early game. I am also experiencing the usual ram -drain graphical anomalies earlier than i used to get them ( they allways occured in the renessance era when all civs have many cities and soldiers. Now i see them at turn 90 and earlier.
P.s. i almost play exclusive on terra, about 12-13 civs and imortal and most graphical options on high or medium .
P.P.s the first save, the game freeze-crashes when you click on bodicca to negotiate with her. the last save the game freeze-crashes when you go north and meet the Wilhelm von oranje for the first time.
I don't know if that is an option for you, but I set leader screen to minimum, and since then civ doesn't crash. Maybe you can go with low or medium but not with high.
Dennis Shirk from firaxis looks at posts in the "fall patch is out" thread. posting your problem and dxdiag there might lead to a solution to the problem.