texmacs & maxima-gcl vs maxima-sbcl



Hello!

I found that usual work in Texmacs (1.0.2.9) with maxima gcl compiled binary 
is very uncomfortable sometimes. The texmacs reaction is very slow often.
It is not the case of sbcl maxima's compiled binary. I was very wondered of 
the texmacs speed in this case. 
Is it because that sbcl compile texmacs.lisp before starting the session?
How to do so for gcl?

Thanks in advance

Valery