Swf is fast until html LAYERS used then slow and jerky?

Here is my lovely crayon drawing board:

[COLOR=#003366]http://www.evynco.com/wboard_wip.html[/COLOR]

fun isnt it ?

The client’s web developer has placed it in a FRAME on their shtml page
and it’s slow and jerky - not good for a drawing app…

Would popping the flash up over the html page wreck the performance ?

This is their page, (but it was down when I checked it just now…)

[COLOR=#800080]http://www.designfront.com.au/slq/games.shtml[/COLOR]

(Click on launch drawing board)

Thank you !:thumb2: