I had tremendously more in the beginning (with Firefox), up tp 77% on long putts with a lot of grid. My delicate CPU temp went to the top (85-90 C)!
Curious, I changed Flash Quality to "medium" and experienced a drop to 45% - still more than before but playable. I have not yet tried to change back - there's no significant loss in quality.
The meter has become smoother, sometimes silky smooth. At other occasions, it's stuttery but steady enough to play - not those unsolvable irregular stops.