Gtk::TreeView performance

[Igor Gorbounov <igorbounov topazelectro ru>]

Hi, All!
My application uses a TreeView (using ListStore model) table to present 
measured data
once per second. This table has about 20 rows and about 40 columns.
The problem is in consuming too much CPU resources (about 14% when the 
table is
switched on, and near 3% when it is switched off). The cells af this 
tables display
text, and the color of this text foreground and background is changed 
depending on
values in invisible cells.
So is there any way to optimize this whole structure?
   Igor Gorbounov