[X2go-user] Flash animation brings x2go to a near halt

Here's a cool flash animation about size of things in the universe:

http://primaxstudio.com/stuff/scale_of_universe/

If I run it on my Ubuntu linux box with the latest firefox browser and flash plugin, it works fine.

But if I access the browser on my linux box with x2go-client from a windows machine, the flash animation brings x2go nearly to a freeze. It does eventually respond, but it takes tens of seconds. The animation is totally unusable. I am barely able to close the browser window to get things back to normal (click on the X and then wait 30 seconds for the browser window to close).

Has anyone else seen this behavior?