web app lagging on Mac

Unity Engine
1

A very strange trouble appears… The same web application is working good on PC, but lags on the Mac’s!
(iMac, SnowLeo, Safari)
Tried to build it on Mac and on PC.

If the project is build as Mac standalone - the application runs very good.
Any ideas?

Thanks in advance

2

Is there any chance you can post (or PM) a link to the webplayer? It will help to narrow down what is going wrong.