slow wxmaxima over ssh



Hello all, 

this is related to wxmaxima, I asked on wxmaxima forum but got no answer.

My wxmaxima is very slow when running over ssh on different computer. I think
that it is not related to math computations, since the focusing another window
and switching back is also very slow. These problems occur with wxmaxima only.
Emacs with imaxima, Firefox, OpenOffice and other programs run fine.

Tested on three computers. More details are on 
http://sourceforge.net/forum/forum.php?thread_id=3083804&forum_id=435775

Does anybody run wxmaxima remotely over ssh? Do you have the same problems? 

Thank you

Robert Marik