as mentioned several times, the statusbar becomes very busy when opening the options.
This comes on the first call of the options after Rhino is started.
I’m not seeing this here. I tried Rhino 5 x86, x64 both SR5 release candidate. Can you tell me what build of Rhino you’re using and any other system info? Also, I tried clicking the Options icon as well as running the command. Are you doing one of these or calling the command through a script or macro maybe?