Spotfire Web Player visualizations are very slow to render in Safari.

Spotfire Web Player visualizations are very slow to render in Safari.

Analysis files are very slow to render when accessed via Safari browser, performance seems fine in Chrome or Firefox. This is a known issue with Safari and NTLM integrated authentication.  Best option is to use a different browser, if changing authentication is not an option. http://stackoverflow.com/questions/711915/safari-problems-accessing-windows-integrated-authentication-aka-ntlm-protected 
http://stackoverflow.com/questions/12817452/windows-authentication-issue-with-safari-5-x-in-windows-7