That is playable, you might notice a small amount of lag but it is most certainly playable.
WoW was playable with 100-150 (on us beta servers) , didn't notice much difference tbh.
For fps it's terrible :\
THE HORDE WILL ENDURE
THE HORDE IS STRONG!
for FPS ping is most critical part, if you play casually and dont care about k/d ratio 100 ms is ok